 /* See LICENSE file for copyright and license details.
 *
 * dynamic window manager is designed like any other X client as well. It is
 * driven through handling X events. In contrast to other X clients, a window
 * manager selects for SubstructureRedirectMask on the root window, to receive
 * events about window (dis-)appearance. Only one X connection at a time is
 * allowed to select for this event mask.
 *
 * The event handlers of dwm are organized in an array which is accessed
 * whenever a new event has been fetched. This allows event dispatching
 * in O(1) time.
 *
 * Each child of the root window is called a client, except windows which have
 * set the override_redirect flag. Clients are organized in a linked client
 * list on each monitor, the focus history is remembered through a stack list
 * on each monitor. Each client contains a bit array to indicate the tags of a
 * client.
 *
 * Keys and tagging rules are organized as arrays and defined in config.h.
 *
 * To understand everything else, start reading main().
 */
#include <errno.h>
#include <locale.h>
#include <signal.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <limits.h>
#include <stdint.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <X11/cursorfont.h>
#include <X11/keysym.h>
#include <X11/Xatom.h>
#include <X11/Xlib.h>
#include <X11/Xproto.h>
#include <X11/Xutil.h>
#ifdef XINERAMA
#include <X11/extensions/Xinerama.h>
#endif /* XINERAMA */
#include <X11/Xft/Xft.h>

#include "drw.h"
#include "util.h"

/* macros */
#define BUTTONMASK              (ButtonPressMask|ButtonReleaseMask)
#define CLEANMASK(mask)         (mask & ~(numlockmask|LockMask) & (ShiftMask|ControlMask|Mod1Mask|Mod2Mask|Mod3Mask|Mod4Mask|Mod5Mask))
#define INTERSECT(x,y,w,h,m)    (MAX(0, MIN((x)+(w),(m)->wx+(m)->ww) - MAX((x),(m)->wx)) \
                               * MAX(0, MIN((y)+(h),(m)->wy+(m)->wh) - MAX((y),(m)->wy)))
#define INTERSECTC(x,y,w,h,z)   (MAX(0, MIN((x)+(w),(z)->x+(z)->w) - MAX((x),(z)->x)) \
                               * MAX(0, MIN((y)+(h),(z)->y+(z)->h) - MAX((y),(z)->y)))
#define ISVISIBLE(C)            ((C->tags & C->mon->tagset[C->mon->seltags] || C->mon->isoverview ))
#define HIDDEN(C)               ((getstate(C->win) == IconicState))
#define LENGTH(X)               (sizeof X / sizeof X[0])
#define MOUSEMASK               (BUTTONMASK|PointerMotionMask)
#define WIDTH(X)                ((X)->w + 2 * (X)->bw)
#define HEIGHT(X)               ((X)->h + 2 * (X)->bw)
#define TAGMASK                 ((1 << LENGTH(tags)) - 1)
#define TEXTW(X)                (drw_fontset_getwidth(drw, (X)) + lrpad)

#define SYSTEM_TRAY_REQUEST_DOCK    0
/* XEMBED messages */
#define XEMBED_EMBEDDED_NOTIFY      0
#define XEMBED_WINDOW_ACTIVATE      1
#define XEMBED_FOCUS_IN             4
#define XEMBED_MODALITY_ON         10
#define XEMBED_MAPPED              (1 << 0)
#define XEMBED_WINDOW_ACTIVATE      1
#define XEMBED_WINDOW_DEACTIVATE    2
#define VERSION_MAJOR               0
#define VERSION_MINOR               0
#define XEMBED_EMBEDDED_VERSION (VERSION_MAJOR << 16) | VERSION_MINOR

#define OPAQUE                  0xffU

#define MWM_HINTS_FLAGS_FIELD       0
#define MWM_HINTS_DECORATIONS_FIELD 2
#define MWM_HINTS_DECORATIONS       (1 << 1)
#define MWM_DECOR_ALL               (1 << 0)
#define MWM_DECOR_BORDER            (1 << 1)
#define MWM_DECOR_TITLE             (1 << 3)

/* enums */
enum { CurResizeHorzArrow, CurResizeVertArrow, CurIronCross,
       CurNormal, CurResize, CurMove, CurLast }; /* cursor */
enum { SchemeNorm, SchemeSel, SchemeHid,
       // WinTitleButtonNorm,
       TabSel, TabNorm, SchemeBtnPrev, SchemeBtnNext, SchemeBtnClose,
       SchemeUrg,
     }; /* color schemes */
enum { NetSupported, NetWMName, NetWMIcon, NetWMState, NetWMCheck,
       NetSystemTray, NetSystemTrayOP, NetSystemTrayOrientation, NetSystemTrayOrientationHorz,
       NetWMFullscreen, NetActiveWindow, NetWMWindowType,
       NetWMWindowTypeDialog, NetClientList, NetLast }; /* EWMH atoms */
enum { Manager, Xembed, XembedInfo, XLast }; /* Xembed atoms */
enum { WMProtocols, WMDelete, WMState, WMTakeFocus, WMLast }; /* default atoms */
enum { ClkTagBar, ClkLtSymbol, ClkStatusText, ClkButton,
       ClkWinTitle, ClkWinTitleButton,
       ClkTabBarWinTitle, ClkTabPrev, ClkTabNext, ClkTabClose, ClkTabWinTitleButton,
       ClkOverview,ClkOverviewSymbol,ClkOverviewWinTitleButton,ClkOverviewWinTitle,
       ClkKeyMode,
       ClkClientWin, ClkRootWin, ClkLast }; /* clicks */
enum showtab_modes { showtab_never, showtab_auto, showtab_nmodes, showtab_always};
enum { WIN_NW, WIN_N, WIN_NE, WIN_W, WIN_C, WIN_E, WIN_SW, WIN_S, WIN_SE }; /* coordinates for moveplace */
enum { DIR_N, DIR_W, DIR_C, DIR_E, DIR_S,
       DIR_U, DIR_D, DIR_M, DIR_L, DIR_R,
       }; /* coordinates for movethrow */

typedef union {
	int i;
	unsigned int ui;
	float f;
	const void *v;
} Arg;

typedef struct {
	unsigned int click;
	unsigned int mask;
	unsigned int button;
	void (*func)(const Arg *arg);
	const Arg arg;
} Button;

typedef struct Monitor Monitor;
typedef struct Client Client;
struct Client {
	char name[256];
	float mina, maxa;
	float cfact;
	int x, y, w, h;
	int oldx, oldy, oldw, oldh;
	int basew, baseh, incw, inch, maxw, maxh, minw, minh, hintsvalid;
	int bw, oldbw;
	unsigned int tags;
	int isfixed, iscentered, isfloating, wasfloating, isurgent, neverfocus, oldstate, isfullscreen, isalwaysontop, isscratchpad, iswinfullscreen;
	unsigned int icw, ich; Picture icon;
	int beingmoved;
	Client *next;
	Client *snext;
	Monitor *mon;
	Window win;
};

typedef struct {
	unsigned int mod;
	KeySym keysym;
	void (*func)(const Arg *);
	const Arg arg;
} Key;

typedef struct {
	unsigned int signum;
	void (*func)(const Arg *);
	const Arg arg;
} Signal;

typedef struct {
	const char *symbol;
	void (*arrange)(Monitor *);
} Layout;

#define MAXTABS 50

typedef struct Pertag Pertag;

struct Monitor {
	char ltsymbol[16];
	float mfact;
	int nmaster;
	int num;
	int by;               /* bar geometry */
	int ty;               /* tab bar geometry */
	int btw;              /* width of tasks portion of bar */
	int bt;               /* number of tasks */
	int mx, my, mw, mh;   /* screen size */
	int wx, wy, ww, wh;   /* window area  */
	int gappih;           /* horizontal gap between windows */
	int gappiv;           /* vertical gap between windows */
	int gappoh;           /* horizontal outer gaps */
	int gappov;           /* vertical outer gaps */
	unsigned int seltags;
	unsigned int sellt;
	unsigned int tagset[2];
	int rmaster;
	int showbar;
	int showtab;
	int showalltags;
	int topbar;
	int toptab;
	int hidsel;
	Client *clients;
	Client *sel;
	Client *stack;
	Monitor *next;
	Window barwin;
	Window tabwin;
	int ntabs;
	int tab_widths[MAXTABS];
	const Layout *lt[2];
	int ltcur; /* current layout */
	Pertag *pertag;
	unsigned int isoverview;
	int scratchpadnumber;
};

typedef struct {
	const char *class;
	const char *instance;
	const char *title;
	unsigned int tags;
	int iscentered;
	int isfloating;
	int monitor;
} Rule;

typedef struct Systray   Systray;
struct Systray {
	Window win;
	Client *icons;
};

typedef struct {
	const char *cmd;
	int id;
} StatusCmd;

/* function declarations */
static void applyrules(Client *c);
static int applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact);
static void arrange(Monitor *m);
static void arrangemon(Monitor *m);
static void attach(Client *c);
static void attachstack(Client *c);
static void buttonpress(XEvent *e);
static void checkotherwm(void);
static void cleanup(void);
static void cleanupmon(Monitor *mon);
static void clientmessage(XEvent *e);
static void configure(Client *c);
static void configurenotify(XEvent *e);
static void configurerequest(XEvent *e);
static Monitor *createmon(void);
static void destroynotify(XEvent *e);
static void detach(Client *c);
static void detachstack(Client *c);
static Monitor *dirtomon(int dir);
static void dragmfact(const Arg *arg);
static void dragcfact(const Arg *arg);
static void clicktogglewinorresizemouse(const Arg *arg);
static void drawbar(Monitor *m);
static void drawbars(void);
static void drawtab(Monitor *m);
static void drawtabs(void);
static void enternotify(XEvent *e);
static void expose(XEvent *e);
static void focus(Client *c);
static void focusin(XEvent *e);
static void focusmon(const Arg *arg);
// static void focusstack(const Arg *arg);
static void focusstackvis(const Arg *arg);
static void focusstackhid(const Arg *arg);
static void focusstack(int inc, int vis);
static void focusstackwrapper(const Arg *arg);
static void focusurgent(const Arg *arg);
static void focuswin(const Arg* arg);
static Atom getatomprop(Client *c, Atom prop);
static Picture geticonprop(Window w, unsigned int *icw, unsigned int *ich);
static int getrootptr(int *x, int *y);
static long getstate(Window w);
static unsigned int getsystraywidth();
static int gettextprop(Window w, Atom atom, char *text, unsigned int size);
static void grabbuttons(Client *c, int focused);
static void grabkeys(void);
static void hide(const Arg *arg);
static void hidewin(Client *c);
static void hideotherwins(const Arg *arg);
static void showonlyorall(const Arg *arg);
static void floatingfullwinscreen(const Arg *arg);
static void nulllayoutfullwinscreen(const Arg *arg);
static void fullwinscreen(const Arg *arg);
static void clickshowonlyorall(const Arg *arg);
static int issinglewin(const Arg *arg);
static void incnmaster(const Arg *arg);
static void keypress(XEvent *e);
static int fake_signal(void);
static void killclient(const Arg *arg);
static void clickfocusandkillclient(const Arg *arg);
static void manage(Window w, XWindowAttributes *wa);
static void mappingnotify(XEvent *e);
static void maprequest(XEvent *e);
static void monocle(Monitor *m);
static void motionnotify(XEvent *e);
static void movemouse(const Arg *arg);
static void moveplace(const Arg *arg);
static void moveorplace(const Arg *arg);
static void movestack(const Arg *arg); 
static void movethrow(const Arg *arg);
static Client *nexttiled(Client *c);
static void placemouse(const Arg *arg);
static void pop(Client *c);
static void propertynotify(XEvent *e);
static void quit(const Arg *arg);
static Client *recttoclient(int x, int y, int w, int h);
static Monitor *recttomon(int x, int y, int w, int h);
static void removesystrayicon(Client *i);
static void resize(Client *c, int x, int y, int w, int h, int interact);
static void resizebarwin(Monitor *m);
static void resizeclient(Client *c, int x, int y, int w, int h);
static void resizemouse(const Arg *arg);
static void resizerequest(XEvent *e);
static void restack(Monitor *m);
static void run(void);
static void runautostart(void);
static void scan(void);
static void scratchpad_hide();
static _Bool scratchpad_last_showed_is_killed(void);
static void scratchpad_remove();
static void scratchpad_show();
static void scratchpad_show_client (Client * c);
static void scratchpad_show_first (void);
static int sendevent(Window w, Atom proto, int m, long d0, long d1, long d2, long d3, long d4);
static void sendmon(Client *c, Monitor *m);
static void setclientstate(Client *c, long state);
static void setfocus(Client *c);
static void setfullscreen(Client *c, int fullscreen);
static void fullscreen(const Arg *arg);
static void togglefullscr(const Arg *arg);
static void setgaps(int oh, int ov, int ih, int iv);
static void incrgaps(const Arg *arg);
static void incrigaps(const Arg *arg);
static void incrogaps(const Arg *arg);
static void incrohgaps(const Arg *arg);
static void incrovgaps(const Arg *arg);
static void incrihgaps(const Arg *arg);
static void incrivgaps(const Arg *arg);
static void togglegaps(const Arg *arg);
static void defaultgaps(const Arg *arg);
static void layoutscroll(const Arg *arg);
static void setlayout(const Arg *arg);
static void setcfact(const Arg *arg);
static void setmfact(const Arg *arg);
static void setup(void);
static void seturgent(Client *c, int urg);
static void show(const Arg *arg);
static void showall(const Arg *arg);
static void showwin(Client *c);
static void showhide(Client *c);
static void sigchld(int unused);
static void spawn(const Arg *arg);
static void tabmode(const Arg *arg);
static void toggletabmode(const Arg *arg);
static void togglekeymode(const Arg *arg);
static void clicktabmodefocusandkillclient(const Arg* arg);
static void clicktabmodetogglefloating(const Arg* arg);
static void clicktabmodetogglealwaysontop(const Arg* arg);
static void clicktabmoderesizemouse(const Arg* arg);
static void clicktabmodemousemove(const Arg* arg);
static Monitor *systraytomon(Monitor *m);
static void tag(const Arg *arg);
static void tagmon(const Arg *arg);
static void tile(Monitor *m);
static void deck(Monitor *m);
static void grid(Monitor *m);
static void overviewgrid(Monitor *m, uint gappo, uint uappi);
static void overview(Monitor *m);
static void overviewwintileclickswitch(const Arg *arg);
static void overviewwinswitch(const Arg *arg);
static void togglebar(const Arg *arg);
static void toggleshowalltags(const Arg *arg);
static void togglefloating(const Arg *arg);
static void togglealwaysontop(const Arg *arg);
static void clicktogglealwaysontop(const Arg *arg);
static void togglermaster(const Arg *arg);
static void clicktogglefloating(const Arg *arg);
static void toggletag(const Arg *arg);
static void toggleview(const Arg *arg);
static void togglewin(const Arg *arg);
static void clicktogglewinormousemove(const Arg *arg);
static void toggleoverview(const Arg *arg);
static void freeicon(Client *c);
static void unfocus(Client *c, int setfocus);
static void unmanage(Client *c, int destroyed);
static void unmapnotify(XEvent *e);
static void updatebarpos(Monitor *m);
static void updatebars(void);
static void updateclientlist(void);
static int updategeom(void);
static void updatemotifhints(Client *c);
static void updatenumlockmask(void);
static void updatesizehints(Client *c);
static void updatestatus(void);
static void updatesystray(void);
static void updatesystrayicongeom(Client *i, int w, int h);
static void updatesystrayiconstate(Client *i, XPropertyEvent *ev);
static void updatetitle(Client *c);
static void updateicon(Client *c);
static void updatewindowtype(Client *c);
static void updatewmhints(Client *c);
static void view(const Arg *arg);
static Client *wintoclient(Window w);
static Monitor *wintomon(Window w);
static Client *wintosystrayicon(Window w);
static int xerror(Display *dpy, XErrorEvent *ee);
static int xerrordummy(Display *dpy, XErrorEvent *ee);
static int xerrorstart(Display *dpy, XErrorEvent *ee);
static void xinitvisual();
static void zoom(const Arg *arg);

/* variables */
static Systray *systray = NULL;
static const char broken[] = "broken";
static const char autostartblocksh[] = "scripts/autostart_blocking.sh";
static const char autostartsh[] = "scripts/autostart.sh";
static const char dwmdir[] = "dwm";
static const char localshare[] = ".local/share";
static char stext[256];
static int statusw;
static int statuscmdn;
static char lastbutton[] = "-";
static int screen;
static int sw, sh;           /* X display screen geometry width, height */
static int bh;               /* bar height */
static int blw;
static int th = 0;           /* tab bar geometry */
static int enablegaps = 1;   /* enables gaps, used by togglegaps */
static int lrpad;            /* sum of left and right padding for text */
static int vp;               /* vertical padding for bar */
static int sp;               /* side padding for bar */
static int (*xerrorxlib)(Display *, XErrorEvent *);
static unsigned int numlockmask = 0;
static void (*handler[LASTEvent]) (XEvent *) = {
	[ButtonPress] = buttonpress,
	[ClientMessage] = clientmessage,
	[ConfigureRequest] = configurerequest,
	[ConfigureNotify] = configurenotify,
	[DestroyNotify] = destroynotify,
	[EnterNotify] = enternotify,
	[Expose] = expose,
	[FocusIn] = focusin,
	[KeyPress] = keypress,
	[MappingNotify] = mappingnotify,
	[MapRequest] = maprequest,
	[MotionNotify] = motionnotify,
	[PropertyNotify] = propertynotify,
    [ResizeRequest] = resizerequest,
	[UnmapNotify] = unmapnotify
};
static Atom wmatom[WMLast], netatom[NetLast], xatom[XLast], motifatom;
static int running = 1;
static Cur *cursor[CurLast];
static Clr **scheme;
static Display *dpy;
static Drw *drw;
static Monitor *mons, *selmon;
static Window root, wmcheckwin;

static int useargb = 0;
static Visual *visual;
static int depth;
static Colormap cmap;

/* scratchpad */
# define SCRATCHPAD_MASK (1u << sizeof tags / sizeof * tags)
static Client * scratchpad_last_showed = NULL;

/* configuration, allows nested code to access above variables */
#include "config.h"

struct Pertag {
	unsigned int curtag, prevtag; /* current and previous tag */
	int nmasters[LENGTH(tags) + 1]; /* number of windows in master area */
	float mfacts[LENGTH(tags) + 1]; /* mfacts per tag */
	unsigned int sellts[LENGTH(tags) + 1]; /* selected layouts */
	const Layout *ltidxs[LENGTH(tags) + 1][2]; /* matrix of tags and layouts indexes  */
	Bool showbars[LENGTH(tags) + 1]; /* display bar for the current tag */
	Client *prevzooms[LENGTH(tags) + 1]; /* store zoom information */
};

/* compile-time check if all tags fit into an unsigned int bit array. */
struct NumTags { char limitexceeded[LENGTH(tags) > 30 ? -1 : 1]; };

/* function implementations */
void
applyrules(Client *c)
{
	const char *class, *instance;
	unsigned int i;
	const Rule *r;
	Monitor *m;
	XClassHint ch = { NULL, NULL };

	/* rule matching */
	c->iscentered = 0;
	c->isfloating = 0;
	c->tags = 0;
	XGetClassHint(dpy, c->win, &ch);
	class    = ch.res_class ? ch.res_class : broken;
	instance = ch.res_name  ? ch.res_name  : broken;

	for (i = 0; i < LENGTH(rules); i++) {
		r = &rules[i];
		if ((!r->title || strstr(c->name, r->title))
		&& (!r->class || strstr(class, r->class))
		&& (!r->instance || strstr(instance, r->instance)))
		{
			c->iscentered = r->iscentered;
			c->isfloating = r->isfloating;
			c->tags |= r->tags;
			for (m = mons; m && m->num != r->monitor; m = m->next);
			if (m)
				c->mon = m;
		}
	}
	if (ch.res_class)
		XFree(ch.res_class);
	if (ch.res_name)
		XFree(ch.res_name);
	if (c->tags != SCRATCHPAD_MASK)
		c->tags = c->tags & TAGMASK ? c->tags & TAGMASK : c->mon->tagset[c->mon->seltags];
}

int
applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact)
{
	int baseismin;
	Monitor *m = c->mon;

	/* set minimum possible */
	*w = MAX(1, *w);
	*h = MAX(1, *h);
	if (interact) {
		if (*x > sw)
			*x = sw - WIDTH(c);
		if (*y > sh)
			*y = sh - HEIGHT(c);
		if (*x + *w + 2 * c->bw < 0)
			*x = 0;
		if (*y + *h + 2 * c->bw < 0)
			*y = 0;
	} else {
		if (*x >= m->wx + m->ww)
			*x = m->wx + m->ww - WIDTH(c);
		if (*y >= m->wy + m->wh)
			*y = m->wy + m->wh - HEIGHT(c);
		if (*x + *w + 2 * c->bw <= m->wx)
			*x = m->wx;
		if (*y + *h + 2 * c->bw <= m->wy)
			*y = m->wy;
	}
	if (*h < bh)
		*h = bh;
	if (*w < bh)
		*w = bh;
	if (resizehints || c->isfloating || !c->mon->lt[c->mon->sellt]->arrange) {
		if (!c->hintsvalid)
			updatesizehints(c);
		/* see last two sentences in ICCCM 4.1.2.3 */
		baseismin = c->basew == c->minw && c->baseh == c->minh;
		if (!baseismin) { /* temporarily remove base dimensions */
			*w -= c->basew;
			*h -= c->baseh;
		}
		/* adjust for aspect limits */
		if (c->mina > 0 && c->maxa > 0) {
			if (c->maxa < (float)*w / *h)
				*w = *h * c->maxa + 0.5;
			else if (c->mina < (float)*h / *w)
				*h = *w * c->mina + 0.5;
		}
		if (baseismin) { /* increment calculation requires this */
			*w -= c->basew;
			*h -= c->baseh;
		}
		/* adjust for increment value */
		if (c->incw)
			*w -= *w % c->incw;
		if (c->inch)
			*h -= *h % c->inch;
		/* restore base dimensions */
		*w = MAX(*w + c->basew, c->minw);
		*h = MAX(*h + c->baseh, c->minh);
		if (c->maxw)
			*w = MIN(*w, c->maxw);
		if (c->maxh)
			*h = MIN(*h, c->maxh);
	}
	return *x != c->x || *y != c->y || *w != c->w || *h != c->h;
}

void
arrange(Monitor *m)
{
	if (m)
		showhide(m->stack);
	else for (m = mons; m; m = m->next)
		showhide(m->stack);
	if (m) {
		arrangemon(m);
		restack(m);
	} else for (m = mons; m; m = m->next)
		arrangemon(m);
}

void
arrangemon(Monitor *m)
{
	updatebarpos(m);
	// XMoveResizeWindow(dpy, m->tabwin, m->wx, m->ty, m->ww, th);
	XMoveResizeWindow(dpy, m->tabwin, m->wx + tabsidepad, m->ty +tabvertpad, m->ww - 2*tabsidepad, th);
	// strncpy(m->ltsymbol, m->lt[m->sellt]->symbol, sizeof m->ltsymbol);
	// if (m->lt[m->sellt]->arrange)
	// 	m->lt[m->sellt]->arrange(m);
	if (m->isoverview) {
		strncpy(m->ltsymbol, overviewlayout.symbol, sizeof m->ltsymbol);
		overviewlayout.arrange(m);
	} else {
		strncpy(m->ltsymbol, m->lt[m->sellt]->symbol, sizeof m->ltsymbol);
		if (m->lt[m->sellt]->arrange)
		m->lt[m->sellt]->arrange(m);
	}
}

void
attach(Client *c)
{
	// c->next = c->mon->clients;
	// c->mon->clients = c;
	if (!newclientathead) {
		Client **tc;
		for (tc = &c->mon->clients; *tc; tc = &(*tc)->next);
		*tc = c;
		c->next = NULL;
	} else {
		c->next = c->mon->clients;
		c->mon->clients = c;
	}
}

void
attachstack(Client *c)
{
	c->snext = c->mon->stack;
	c->mon->stack = c;
}

void
buttonpress(XEvent *e)
{
	unsigned int i, x, click,nvis;
	Arg arg = {0};
	Client *c,*c2;
	Monitor *m;
	XButtonPressedEvent *ev = &e->xbutton;

	click = ClkRootWin;
	/* focus monitor if necessary */
	if ((m = wintomon(ev->window)) && m != selmon) {
		unfocus(selmon->sel, 1);
		selmon = m;
		focus(NULL);
	}
	if (ev->window == selmon->barwin) {
		i = x = 0;
		x += TEXTW(buttonbar);
		if(ev->x < x) {
			click = ClkButton;
		} else {
			if (selmon->isoverview) {
				if (ev->x < x + TEXTW(overviewtag)) {
					// 该位置是 切换 overview 视图后，OVERVIEW 文字显示位置
					click = ClkOverview;
				}
				x += TEXTW(overviewtag);
				i = ~0;
				if (ev->x > x)
				i = LENGTH(tags);
				if (ev->x < x + TEXTW(selmon->ltsymbol)) {
					// 该位置是 切换 overview 视图后，布局图标位置
					click = ClkOverview;
				// } else if (ev->x > selmon->ww - TEXTW(stext) + lrpad - 2 ){
				// } else if (ev->x > selmon->ww - TEXTW(stext) + lrpad - 2 - getsystraywidth()){
				// 	// 该位置是 切换 overview 视图后，状态栏文字部分  有系统托盘
				//	click = ClkStatusText;
				} else if (ev->x > selmon->ww -  statusw - getsystraywidth() - 2*sp) {
					// 该位置是 切换 overview 视图后，状态栏文字部分 statuscmd
					char *text, *s, ch;
					*lastbutton = '0' + ev->button;
					x = selmon->ww - statusw - getsystraywidth() - 2*sp;
					click = ClkStatusText;
					statuscmdn = 0;
					for (text = s = stext; *s && x <= ev->x; s++) {
						if ((unsigned char)(*s) < ' ') {
							ch = *s;
							*s = '\0';
							x += TEXTW(text) - lrpad;
							*s = ch;
							text = s + 1;
							if (x >= ev->x)
								break;
							statuscmdn = ch;
						}
					}
				} else {
					// 该位置是 切换 overview 视图后，应用窗口标题位置
					x += blw;
					c = m->clients;
					if (c) {
						do {
							if (!ISVISIBLE(c)) {
								continue;
							} else {
								if (ev->x > x && ev->x < x + TEXTW(wintitlebutton)) {
									// click = ClkWinTitleButton;
									click = ClkOverviewWinTitleButton;
								} else if (ev->x > x + TEXTW(wintitlebutton))  {
									// click = ClkWinTitle;
									click = ClkOverviewWinTitle;
								} else {
									break;
								}
								x +=(1.0 / (double)m->bt) * m->btw;
							}
						} while (ev->x > x && (c = c->next));
						// click = ClkOverviewWinTitle;
						arg.v = c;
					}
				}
			} else { 
				if(m->showalltags == 1) {
					do {
						x += TEXTW(tags[i]);
					} while (ev->x >= x && ++i < LENGTH(tags));	
				} else {
					unsigned int occ = 0;
					for(c = m->clients; c; c=c->next)
						occ |= c->tags;
					do {
						/* Do not reserve space for vacant tags */
						if (!(occ & 1 << i || m->tagset[m->seltags] & 1 << i))
							continue;
						x += TEXTW(tags[i]);
					} while (ev->x >= x && ++i < LENGTH(tags));	
				}
				if (i < LENGTH(tags)) {
					click = ClkTagBar;
					arg.ui = 1 << i;
				} else if (ev->x < x + TEXTW(selmon->ltsymbol)) {
					click = ClkLtSymbol;
				} else if ( 
					(  (x + TEXTW(selmon->ltsymbol) < ev->x )
					&& ( ev->x < x + TEXTW(selmon->ltsymbol) + TEXTW(key_mode_icon_insert) )
					)
				) {
					click = ClkKeyMode;
					// x += TEXTW(key_mode_icon_insert);
					// blw += TEXTW(key_mode_icon_insert);
				// else if (ev->x > selmon->ww - (int)TEXTW(stext) - getsystraywidth())
				/* 2px right padding */
				// else if (ev->x > selmon->ww - (int)TEXTW(stext) - getsystraywidth()  + lrpad - 2)
				//	click = ClkStatusText;
				// else if (ev->x > selmon->ww -  statusw - getsystraywidth()  + lrpad - 2) {
				} else if (ev->x > selmon->ww -  statusw - getsystraywidth() - 2*sp) {
					// 状态栏 status 文字部分
					char *text, *s, ch;
					*lastbutton = '0' + ev->button;
					x = selmon->ww - statusw - getsystraywidth() - 2*sp;
					click = ClkStatusText;
					statuscmdn = 0;
					for (text = s = stext; *s && x <= ev->x; s++) {
						if ((unsigned char)(*s) < ' ') {
							ch = *s;
							*s = '\0';
							x += TEXTW(text) - lrpad;
							*s = ch;
							text = s + 1;
							if (x >= ev->x)
								break;
							statuscmdn = ch;
						}
					}
				} else {
					c2 = m->clients;
					// click = ClkWinTitle;
					for (c2 = m->clients; c2; c2 = c2->next) {
						if (ISVISIBLE(c2)) {
							++nvis;
						}
					}			
					
					if ( ((m->showtab == showtab_auto) && (nvis > 0) && (m->lt[m->sellt]->arrange == monocle))
							|| m->showtab == showtab_always
						// || m->showclientbar == 1
					) { // 如果tabmode模式打开 则只在状态栏显示当前窗口状态标题
						click = ClkWinTitle;
						arg.v = selmon->sel;
					} else { 
						x += (blw +TEXTW(key_mode_icon_insert));
						c = m->clients;
						if (c) {
							do {
								if (!ISVISIBLE(c)) {
									continue;
								} else {
									if (( x < ev->x )&& (ev->x < x + TEXTW(wintitlebutton))) {
										click = ClkWinTitleButton;
									} else if (ev->x > x + TEXTW(wintitlebutton))  {
										click = ClkWinTitle;
									} else {
										break;
									}
									x +=(1.0 / (double)m->bt) * m->btw;
								}

							} while (ev->x > x && (c = c->next));

							// click = ClkWinTitle;
							arg.v = c;
						}
					}
				}
			}
		}
	}
	if(ev->window == selmon->tabwin) {
		i = 0; x = 0;
		for(c = selmon->clients; c; c = c->next){
			if(!ISVISIBLE(c)) 
				continue;
			if (( x < ev->x )&& (ev->x < x + TEXTW(wintitlebutton))) {
				click = ClkTabWinTitleButton;
			} else if (( x + TEXTW(wintitlebutton) < ev->x )&& (ev->x < x + selmon->tab_widths[i]))  {
				click = ClkTabBarWinTitle;
			} else {
				
			}
			x += selmon->tab_widths[i];
			if (ev->x > x) {
				++i;
			} else {
				break;
			}
			if(i >= m->ntabs) break;
		}

		if(c) {
			// click = ClkTabBarWinTitle;
			arg.ui = i;
		}
		// ClkTabPrev
		// ClkTabNext
		// ClkTabClose
		int btnx = m->ww - 2*tabsidepad  - TEXTW(tab_btn_prev) - TEXTW(tab_btn_next) - TEXTW(tab_btn_close) - 2*tabbuttonpad;
		if ( ( btnx < ev->x )&& ( ev->x < (btnx = btnx + TEXTW(tab_btn_prev) + tabbuttonpad ) ) )
		{
			click = ClkTabPrev;
		}
		if ( ( btnx < ev->x )&& ( ev->x < (btnx = btnx + TEXTW(tab_btn_next) + tabbuttonpad ) ) )
		{
			click = ClkTabNext;
		}
		if ( ( btnx < ev->x )&& ( ev->x < (btnx = btnx + TEXTW(tab_btn_next) ) ) )
		{
			click = ClkTabClose;
		}
	} else if ((c = wintoclient(ev->window))) {
		focus(c);
		restack(selmon);
		XAllowEvents(dpy, ReplayPointer, CurrentTime);
		click = ClkClientWin;
	}
	for (i = 0; i < LENGTH(buttons); i++)
		if (click == buttons[i].click && buttons[i].func && buttons[i].button == ev->button
		&& CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
			buttons[i].func(
					(click == ClkTagBar 
					|| click == ClkWinTitle 
					|| click == ClkWinTitleButton 
					|| click == ClkTabBarWinTitle
					|| click == ClkTabWinTitleButton 
					|| click == ClkTabPrev
					|| click == ClkTabNext
					|| click == ClkTabClose
					|| click == ClkOverviewWinTitle 
					|| click == ClkOverviewWinTitleButton  
					|| click == ClkKeyMode  
					) && buttons[i].arg.i == 0 ? &arg : &buttons[i].arg
				);
}

void
checkotherwm(void)
{
	xerrorxlib = XSetErrorHandler(xerrorstart);
	/* this causes an error if some other window manager is running */
	XSelectInput(dpy, DefaultRootWindow(dpy), SubstructureRedirectMask);
	XSync(dpy, False);
	XSetErrorHandler(xerror);
	XSync(dpy, False);
}

void
cleanup(void)
{
	Arg a = {.ui = ~0};
	Layout foo = { "", NULL };
	Monitor *m;
	size_t i;

	view(&a);
	selmon->lt[selmon->sellt] = &foo;
	for (m = mons; m; m = m->next)
		while(m->stack)
			unmanage(m->stack, False);
	XUngrabKey(dpy, AnyKey, AnyModifier, root);
	while (mons)
		cleanupmon(mons);

	if (showsystray) {
		XUnmapWindow(dpy, systray->win);
		XDestroyWindow(dpy, systray->win);
		free(systray);
	}

    for (i = 0; i < CurLast; i++)
		drw_cur_free(drw, cursor[i]);
	for (i = 0; i < LENGTH(colors); i++)
		free(scheme[i]);
	free(scheme);
	XDestroyWindow(dpy, wmcheckwin);
	drw_free(drw);
	XSync(dpy, False);
	XSetInputFocus(dpy, PointerRoot, RevertToPointerRoot, CurrentTime);
	XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
}

void
cleanupmon(Monitor *mon)
{
	Monitor *m;

	if (mon == mons)
		mons = mons->next;
	else {
		for (m = mons; m && m->next != mon; m = m->next);
		m->next = mon->next;
	}
	XUnmapWindow(dpy, mon->barwin);
	XDestroyWindow(dpy, mon->barwin);
	XUnmapWindow(dpy, mon->tabwin);
	XDestroyWindow(dpy, mon->tabwin);
	free(mon);
}

void
clientmessage(XEvent *e)
{
	XWindowAttributes wa;
	XSetWindowAttributes swa;
	XClientMessageEvent *cme = &e->xclient;
	Client *c = wintoclient(cme->window);
	int i;

	if (showsystray && cme->window == systray->win && cme->message_type == netatom[NetSystemTrayOP]) {
		/* add systray icons */
		if (cme->data.l[1] == SYSTEM_TRAY_REQUEST_DOCK) {
			if (!(c = (Client *)calloc(1, sizeof(Client))))
				die("fatal: could not malloc() %u bytes\n", sizeof(Client));
			if (!(c->win = cme->data.l[2])) {
				free(c);
				return;
			}
			c->mon = selmon;
			c->next = systray->icons;
			systray->icons = c;
			if (!XGetWindowAttributes(dpy, c->win, &wa)) {
				/* use sane defaults */
				wa.width = bh;
				wa.height = bh;
				wa.border_width = 0;
			}
			c->x = c->oldx = c->y = c->oldy = 0;
			c->w = c->oldw = wa.width;
			c->h = c->oldh = wa.height;
			c->oldbw = wa.border_width;
			c->bw = 0;
			c->isfloating = True;
			/* reuse tags field as mapped status */
			c->tags = 1;
			updatesizehints(c);
			updatesystrayicongeom(c, wa.width, wa.height);
			XAddToSaveSet(dpy, c->win);
			XSelectInput(dpy, c->win, StructureNotifyMask | PropertyChangeMask | ResizeRedirectMask);
			XReparentWindow(dpy, c->win, systray->win, 0, 0);
			/* use parents background color */
			swa.background_pixel  = scheme[SchemeNorm][ColBg].pixel;
			XChangeWindowAttributes(dpy, c->win, CWBackPixel, &swa);
			sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_EMBEDDED_NOTIFY, 0 , systray->win, XEMBED_EMBEDDED_VERSION);
			/* FIXME not sure if I have to send these events, too */
			sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_FOCUS_IN, 0 , systray->win, XEMBED_EMBEDDED_VERSION);
			sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_WINDOW_ACTIVATE, 0 , systray->win, XEMBED_EMBEDDED_VERSION);
			sendevent(c->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_MODALITY_ON, 0 , systray->win, XEMBED_EMBEDDED_VERSION);
			XSync(dpy, False);
			resizebarwin(selmon);
			updatesystray();
			setclientstate(c, NormalState);
		}
		return;
	}

	if (!c)
		return;
	if (cme->message_type == netatom[NetWMState]) {
		if (cme->data.l[1] == netatom[NetWMFullscreen]
		|| cme->data.l[2] == netatom[NetWMFullscreen])
			setfullscreen(c, (cme->data.l[0] == 1 /* _NET_WM_STATE_ADD    */
				|| (cme->data.l[0] == 2 /* _NET_WM_STATE_TOGGLE */ && !c->isfullscreen)));
	} else if (cme->message_type == netatom[NetActiveWindow]) {
		if (c != selmon->sel && !c->isurgent) {
			seturgent(c, 1);
			/* 自动聚焦到紧急窗口*/
			// focusurgent(c); /* 聚焦到紧急窗口*/
			Arg a = { .v = c };
			focusurgent(&a);
		}
	}
}

void
configure(Client *c)
{
	XConfigureEvent ce;

	ce.type = ConfigureNotify;
	ce.display = dpy;
	ce.event = c->win;
	ce.window = c->win;
	ce.x = c->x;
	ce.y = c->y;
	ce.width = c->w;
	ce.height = c->h;
	ce.border_width = c->bw;
	ce.above = None;
	ce.override_redirect = False;
	XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&ce);
}

void
configurenotify(XEvent *e)
{
	Monitor *m;
	XConfigureEvent *ev = &e->xconfigure;
	int dirty;

	// TODO: updategeom handling sucks, needs to be simplified
	if (ev->window == root) {
		dirty = (sw != ev->width || sh != ev->height);
		sw = ev->width;
		sh = ev->height;
		if (updategeom() || dirty) {
			drw_resize(drw, sw, bh);
			updatebars();
			// for (m = mons; m; m = m->next) {
			// 	for (c = m->clients; c; c = c->next)
			// 		if (c->isfullscreen)
			// 			resizeclient(c, m->mx, m->my, m->mw, m->mh);
			//refreshing display of status bar. The tab bar is handled by the arrange()
			//method, which is called below
			for (m = mons; m; m = m->next){
				resizebarwin(m);
			}
			focus(NULL);
			arrange(NULL);
		}
	}
}

void
configurerequest(XEvent *e)
{
	Client *c;
	Monitor *m;
	XConfigureRequestEvent *ev = &e->xconfigurerequest;
	XWindowChanges wc;

	if ((c = wintoclient(ev->window))) {
		if (ev->value_mask & CWBorderWidth)
			c->bw = ev->border_width;
		else if (c->isfloating || !selmon->lt[selmon->sellt]->arrange) {
			m = c->mon;
			if (ev->value_mask & CWX) {
				c->oldx = c->x;
				c->x = m->mx + ev->x;
			}
			if (ev->value_mask & CWY) {
				c->oldy = c->y;
				c->y = m->my + ev->y;
			}
			if (ev->value_mask & CWWidth) {
				c->oldw = c->w;
				c->w = ev->width;
			}
			if (ev->value_mask & CWHeight) {
				c->oldh = c->h;
				c->h = ev->height;
			}
			if ((c->x + c->w) > m->mx + m->mw && c->isfloating)
				c->x = m->mx + (m->mw / 2 - WIDTH(c) / 2); /* center in x direction */
			if ((c->y + c->h) > m->my + m->mh && c->isfloating)
				c->y = m->my + (m->mh / 2 - HEIGHT(c) / 2); /* center in y direction */
			if ((ev->value_mask & (CWX|CWY)) && !(ev->value_mask & (CWWidth|CWHeight)))
				configure(c);
			if (ISVISIBLE(c))
				XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
		} else
			configure(c);
	} else {
		wc.x = ev->x;
		wc.width = ev->width;
		wc.height = ev->height;
		wc.border_width = ev->border_width;
		wc.sibling = ev->above;
		wc.stack_mode = ev->detail;
		XConfigureWindow(dpy, ev->window, ev->value_mask, &wc);
	}
	XSync(dpy, False);
}

Monitor *
createmon(void)
{
	Monitor *m;
	int i;

	m = ecalloc(1, sizeof(Monitor));
	m->tagset[0] = m->tagset[1] = 1;
	m->mfact = mfact;
	m->nmaster = nmaster;
	m->rmaster = rmaster;
	m->showbar = showbar;
	m->showtab = showtab;
	m->topbar = topbar;
	// m->vertpad = vertpad;
	// m->sidepad = sidepad;
	m->gappih = gappih;
	m->gappiv = gappiv;
	m->gappoh = gappoh;
	m->gappov = gappov;
	m->showalltags = showalltags;
	m->ltcur = 0;
	m->toptab = toptab;
	m->ntabs = 0;
	// m->lt[0] = &layouts[0];
	m->lt[0] = &layouts[def_layouts[1] % LENGTH(layouts)];
	m->lt[1] = &layouts[1 % LENGTH(layouts)];
	m->isoverview = 0;
	m->scratchpadnumber = 0;
	strncpy(m->ltsymbol, layouts[0].symbol, sizeof m->ltsymbol);
	if(!(m->pertag = (Pertag *)calloc(1, sizeof(Pertag))))
		die("fatal: could not malloc() %u bytes\n", sizeof(Pertag));
	m->pertag->curtag = m->pertag->prevtag = 1;
	for(i=0; i <= LENGTH(tags); i++) {
		/* init nmaster */
		m->pertag->nmasters[i] = m->nmaster;

		/* init mfacts */
		m->pertag->mfacts[i] = m->mfact;

		/* init layouts */
		m->pertag->ltidxs[i][0] = &layouts[def_layouts[i % LENGTH(def_layouts)] % LENGTH(layouts)];
		m->pertag->ltidxs[i][1] = m->lt[1];
		m->pertag->sellts[i] = m->sellt;

		/* init showbar */
		m->pertag->showbars[i] = m->showbar;

		/* swap focus and zoomswap*/
		m->pertag->prevzooms[i] = NULL;
	}
	return m;
}

void
destroynotify(XEvent *e)
{
	Client *c;
	XDestroyWindowEvent *ev = &e->xdestroywindow;

	if ((c = wintoclient(ev->window)))
		unmanage(c, 1);
	else if ((c = wintosystrayicon(ev->window))) {
		removesystrayicon(c);
		resizebarwin(selmon);
		updatesystray();
	}
}

void
detach(Client *c)
{
	Client **tc;

	for (tc = &c->mon->clients; *tc && *tc != c; tc = &(*tc)->next);
	*tc = c->next;
}

void
detachstack(Client *c)
{
	Client **tc, *t;

	for (tc = &c->mon->stack; *tc && *tc != c; tc = &(*tc)->snext);
	*tc = c->snext;

	if (c == c->mon->sel) {
		for (t = c->mon->stack; t && !ISVISIBLE(t); t = t->snext);
		c->mon->sel = t;
	}
}

Monitor *
dirtomon(int dir)
{
	Monitor *m = NULL;

	if (dir > 0) {
		if (!(m = selmon->next))
			m = mons;
	} else if (selmon == mons)
		for (m = mons; m->next; m = m->next);
	else
		for (m = mons; m->next != selmon; m = m->next);
	return m;
}


void dragcfact(const Arg *arg) {
  int prev_x, prev_y, dist_x, dist_y;
  float fact;
  Client *c;
  XEvent ev;
  Time lasttime = 0;

  if (!(c = selmon->sel))
    return;
  if (c->isfloating) {
    resizemouse(arg);
    return;
  }
#if !FAKEFULLSCREEN_PATCH
#if FAKEFULLSCREEN_CLIENT_PATCH
  if (c->isfullscreen &&
      !c->fakefullscreen) /* no support resizing fullscreen windows by mouse */
    return;
#else
  if (c->isfullscreen) /* no support resizing fullscreen windows by mouse */
    return;
#endif // FAKEFULLSCREEN_CLIENT_PATCH
#endif // !FAKEFULLSCREEN_PATCH
  restack(selmon);

  if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
                   None, cursor[CurResize]->cursor, CurrentTime) != GrabSuccess)
    return;
  XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w / 2, c->h / 2);

  prev_x = prev_y = -999999;

  do {
    XMaskEvent(dpy, MOUSEMASK | ExposureMask | SubstructureRedirectMask, &ev);
    switch (ev.type) {
    case ConfigureRequest:
    case Expose:
    case MapRequest:
      handler[ev.type](&ev);
      break;
    case MotionNotify:
      if ((ev.xmotion.time - lasttime) <= (1000 / 60))
        continue;
      lasttime = ev.xmotion.time;
      if (prev_x == -999999) {
        prev_x = ev.xmotion.x_root;
        prev_y = ev.xmotion.y_root;
      }

      dist_x = ev.xmotion.x - prev_x;
      dist_y = ev.xmotion.y - prev_y;

      if (abs(dist_x) > abs(dist_y)) {
        fact = (float)4.0 * dist_x / c->mon->ww;
      } else {
        fact = (float)-4.0 * dist_y / c->mon->wh;
      }

      if (fact)
        setcfact(&((Arg){.f = fact}));

      prev_x = ev.xmotion.x;
      prev_y = ev.xmotion.y;
      break;
    }
  } while (ev.type != ButtonRelease);

  XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w / 2, c->h / 2);

  XUngrabPointer(dpy, CurrentTime);
  while (XCheckMaskEvent(dpy, EnterWindowMask, &ev))
    ;
}

void 
dragmfact(const Arg *arg) {
	unsigned int n;
	int py, px;         // pointer coordinates
	int ax, ay, aw, ah; // area position, width and height
	int center = 0, horizontal = 0, mirror = 0, fixed = 0; // layout configuration
	double fact;
	Monitor *m;
	Client *c;
	XEvent ev;
	Time lasttime = 0;

	if (!(c = selmon->sel))
		return;
	if (c->isfloating) {
		resizemouse(arg);
		return;
	}
	if (c->isfullscreen) /* no support resizing fullscreen windows by mouse */
    		return;
  	restack(selmon);

	m = selmon;

	for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++)
		;

	ax = m->wx;
	ay = m->wy;
	ah = m->wh;
	aw = m->ww;

	if (!n)
		return;
	/* do not allow mfact to be modified under certain conditions */
	if (!m->lt[m->sellt]->arrange                    // floating layout
		|| (!fixed && m->nmaster && n <= m->nmaster) // no master
		|| m->lt[m->sellt]->arrange == &monocle
	)
		return;


	if (center) {
		if (horizontal) {
			px = ax + aw / 2;
			py = ay + ah / 2 + ah * m->mfact / 2.0;
		} else { // vertical split
			px = ax + aw / 2 + aw * m->mfact / 2.0;
			py = ay + ah / 2;
		}
	} else if (horizontal) {
		px = ax + aw / 2;
		if (mirror)
			py = ay + (ah * (1.0 - m->mfact));
		else
			py = ay + (ah * m->mfact);
	} else { // vertical split
		if (mirror)
			px = ax + (aw * m->mfact);
		else
			px = ax + (aw * m->mfact);
		py = ay + ah / 2;
	}

	if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync, None,
		cursor[horizontal ? CurResizeVertArrow : CurResizeHorzArrow]->cursor,
		CurrentTime) != GrabSuccess)
		return;
  	XWarpPointer(dpy, None, root, 0, 0, 0, 0, px, py);

	do {
		XMaskEvent(dpy, MOUSEMASK | ExposureMask | SubstructureRedirectMask, &ev);
		switch (ev.type) {
			case ConfigureRequest:
			case Expose:
			case MapRequest:
				handler[ev.type](&ev);
				break;
			case MotionNotify:
				if ((ev.xmotion.time - lasttime) <= (1000 / 40))
					continue;
				if (lasttime != 0) {
					px = ev.xmotion.x;
					py = ev.xmotion.y;
				}
				lasttime = ev.xmotion.time;

				if (center)
					if (horizontal)
						if (py - ay > ah / 2)
							fact = (double)1.0 -  (ay + ah - py) * 2 / (double)ah;
						else
							fact = (double)1.0 - (py - ay) * 2 / (double)ah;
						else if (px - ax > aw / 2)
							fact = (double)1.0 - (ax + aw - px) * 2 / (double)aw;
						else
							fact = (double)1.0 - (px - ax) * 2 / (double)aw;
					else if (horizontal)
						fact = (double)(py - ay) / (double)ah;
					else
						fact = (double)(px - ax) / (double)aw;

				if (!center && mirror)
					fact = 1.0 - fact;
				setmfact(&((Arg){.f = 1.0 + fact}));
				px = ev.xmotion.x;
				py = ev.xmotion.y;
				break;
		}
	} while (ev.type != ButtonRelease);

	XUngrabPointer(dpy, CurrentTime);
	while (XCheckMaskEvent(dpy, EnterWindowMask, &ev));
}

void
clicktogglewinorresizemouse(const Arg *arg)
{
	Client *c = (Client*)arg->v;
	Client *c2;
	unsigned int i=0, n=0;
	Monitor *m;

	if (c == selmon->sel) {
	// 如果已经选中则，进入拖拽移动功能
		// hidewin(c);
		// focus(NULL);
		// arrange(c->mon);
		if (c->isfloating) {// 如果是浮动这进入拖拽改变窗口尺寸模式
			resizemouse(arg);
			return;
		} else {
			// // for (n = 0, c2 = nexttiled(m->clients); c2; c2 = nexttiled(c->next)){
			// // 	n++;
			// // 	if(c2 == selmon->sel){
			// // 		i=n;
			// // 	}
			// // }
			// // (m->nmaster && n <= m->nmaster)
			// if ( m->lt[m->sellt]->arrange == &tile ) {
			// 	dragmfact(arg);
			// } else {
			// 	dragcfact(arg);
			// }
			dragmfact(arg);
			return;
		}
		// if (c->isfullscreen)  
		// {
		// }
	} else {
		if (HIDDEN(c))
			showwin(c);
		focus(c);
		restack(selmon);
	}
}

void
drawbar(Monitor *m)
{
	// int x, w, tw = 0, stw = 0;
	int x, w, tw = 0, stw = 0, n = 0, scm, win_title_button_w = 0, nvis = 0;
	int boxs = drw->fonts->h / 9;
	int boxw = drw->fonts->h / 6 + 2;
	unsigned int i, occ = 0, urg = 0;
	Client *c;

	if (!m->showbar)
		return;

	if(showsystray && m == systraytomon(m) && !systrayonleft)
		stw = getsystraywidth();

	/* draw status first so it can be overdrawn by tags later */
	if (m == selmon) { /* status is only drawn on selected monitor */
		char *text, *s, ch;
		drw_setscheme(drw, scheme[SchemeNorm]);
		// tw = TEXTW(stext) - lrpad / 2 + 2; /* 2px extra right padding */
		// drw_text(drw, m->ww - tw - stw, 0, tw, bh, lrpad / 2 - 2, stext, 0);
		x = 0;
		for (text = s = stext; *s; s++) {
			if ((unsigned char)(*s) < ' ') {
				ch = *s;
				*s = '\0';
				// tw = TEXTW(text) - lrpad;
				// drw_text(drw, m->ww - statusw + x, 0, tw, bh, 0, text, 0);
				tw = TEXTW(text) - lrpad ;
				// drw_text(drw, m->ww - stw - statusw + x, 0, tw, bh,0, text, 0);
				drw_text(drw, m->ww - stw - statusw + x - 2 * sp, 0, tw, bh,0, text, 0);
				x += tw;
				*s = ch;
				text = s + 1;
			}
		}
		// tw = TEXTW(text) - lrpad + 2;
		// drw_text(drw, m->ww - statusw + x, 0, tw, bh, 0, text, 0);
		tw = TEXTW(text) - lrpad + 2;
		// drw_text(drw, m->ww - stw - statusw + x, 0, tw, bh,0, text, 0);
		drw_text(drw, m->ww - stw - statusw + x - 2 * sp, 0, tw, bh,0, text, 0);
		tw = statusw;
	}

	resizebarwin(m);
	for (c = m->clients; c; c = c->next) {
		if (ISVISIBLE(c)) {
			n++;
			// ++nvis;
		}
		occ |= c->tags;
		if (c->isurgent)
			urg |= c->tags;
	}
	x = 0;
	w = blw = TEXTW(buttonbar);
	drw_setscheme(drw, scheme[SchemeNorm]);
	x = drw_text(drw, x, 0, w, bh, lrpad / 2, buttonbar, 0);
	if (m->isoverview) {
		w = TEXTW(overviewtag);
		drw_setscheme(drw, scheme[SchemeSel]);
		drw_text(drw, x, 0, w, bh, lrpad / 2, overviewtag, 0);
		x += w;
	} else {
		for (i = 0; i < LENGTH(tags); i++) {
			if (m->showalltags == 0) {
				/* Do not draw vacant tags */
				if(!(occ & 1 << i || m->tagset[m->seltags] & 1 << i))
					continue;
			}
			w = TEXTW(tags[i]);
			drw_setscheme(drw, scheme[m->tagset[m->seltags] & 1 << i ? SchemeSel : SchemeNorm]);
			drw_text(drw, x, 0, w, bh, lrpad / 2, tags[i], urg & 1 << i);
			if (m->showalltags == 1) {
				if (occ & 1 << i)
					drw_rect(drw, x + boxs, boxs, boxw, boxw,
						m == selmon && selmon->sel && selmon->sel->tags & 1 << i,
						urg & 1 << i);
			}
			x += w;
		}
	}
	w = TEXTW(m->ltsymbol);
	drw_setscheme(drw, scheme[SchemeNorm]);
	// x = drw_text(drw, x, 0, w, bh, lrpad / 2, m->ltsymbol, 0);
	drw_text(drw, x, 0, w, bh, lrpad / 2, m->ltsymbol, 0);
	x+=w;
	// // if (keymode == ModeCommand)
	if (keymode == COMMANDMODE)
	{
		w = TEXTW(key_mode_icon_cmd);
		drw_setscheme(drw, scheme[SchemeNorm]);
		drw_text(drw, x, 0, w, bh, lrpad / 2, key_mode_icon_cmd, 0);
		x+=w;	
	} else {
		w = TEXTW(key_mode_icon_insert);
		drw_setscheme(drw, scheme[SchemeNorm]);
		drw_text(drw, x, 0, w, bh, lrpad / 2, key_mode_icon_insert, 0);
		x+=w;	
	}
	if ((w = m->ww - tw - stw - x - 2 * sp) > bh) {
	// if ((w = m->ww - tw - stw - x - 2 * sp) > bh) {
		// if (m->sel) {
		// 	drw_setscheme(drw, scheme[m == selmon ? SchemeSel : SchemeNorm]);
		// 	drw_text(drw, x, 0, w, bh, lrpad / 2, m->sel->name, 0);
		// 	if (m->sel->isfloating)
		// 		drw_rect(drw, x + boxs, boxs, boxw, boxw, m->sel->isfixed, 0);
		// }
		if (n > 0) {
			int remainder = w % n;
			int tabw = (1.0 / (double)n) * w + 1;
			for (c = m->clients; c; c = c->next) {
				if (!ISVISIBLE(c))
					continue;
				if (m->sel == c)
					scm = SchemeSel;
				else if (HIDDEN(c))
					scm = SchemeHid;
				else
					scm = SchemeNorm;
				// if ( ((m->showtab == showtab_auto) && (nvis > 1) && (m->lt[m->sellt]->arrange == monocle))
				if ( ((m->showtab == showtab_auto) && (n > 0) && (m->lt[m->sellt]->arrange == monocle))
	   				|| m->showtab == showtab_always
					// || m->showclientbar == 1
				)
				{ // 如果tabmode模式打开 则只在状态栏显示当前窗口状态标题
					if (m->sel) {
						// drw_setscheme(drw, scheme[scm]);
						drw_setscheme(drw, scheme[SchemeNorm]);
						drw_text(drw, x, 0, w, bh, lrpad / 2 + (m->sel->icon ? m->sel->icw + ICONSPACING : 0), m->sel->name, 0);
						if (m->sel->icon) 
							drw_pic(drw, x + lrpad / 2, (bh - m->sel->ich) / 2, m->sel->icw, m->sel->ich, m->sel->icon);
						if (m->sel->isfloating)
							drw_rect(drw, x + boxs, boxs, boxw, boxw, m->sel->isfixed, 0);
					} else {
						// drw_setscheme(drw, scheme[scm]);
						drw_setscheme(drw, scheme[SchemeNorm]);
						drw_rect(drw, x, 0, w - m->gappov * 2, bh, 1, 1);
					}
				} else {
					drw_setscheme(drw, scheme[scm]);
					// 画按钮
					if( showwintitlebutton == 1) {
						win_title_button_w = TEXTW(wintitlebutton);
						// drw_setscheme(drw, scheme[WinTitleButtonNorm]);
						x = drw_text(drw, x, 0, win_title_button_w, bh, lrpad / 2, wintitlebutton, 0);
					}
					// drw_setscheme(drw, scheme[scm]);
					if (remainder >= 0) {
						if (remainder == 0) {
							tabw--;
						}
						remainder--;
					}
					/* 没有图标 */
					// drw_text(drw, x, 0, tabw, bh, lrpad / 2, c->name, 0);
					/* 有窗口图标 图标不重复 */
					if ( showwintitlebutton == 1) {
						drw_text(drw, x, 0, tabw - win_title_button_w, bh, lrpad / 2 + (c->icon ? c->icw + ICONSPACING : 0), c->name, 0);
					} else {
						drw_text(drw, x, 0, tabw, bh, lrpad / 2 + (c->icon ? c->icw + ICONSPACING : 0), c->name, 0);
					}
					if (c->icon) { // 如果有图标
						drw_pic(drw, x + lrpad / 2, (bh - c->ich) / 2, c->icw, c->ich, c->icon);
					}
					// 视觉增强，窗口给不同状态画记号
					int drw_rx = 0;
					// drw_rx = x;
					// drw_rx = x - win_title_button_w + boxs;
					drw_rx = x + boxs;
					if(HIDDEN(c)) { // 如果窗口隐藏
						// drw_rect(drw, x + boxs, boxs, boxw, boxw, c->isfixed, 0); /* 在置顶的悬浮窗口 窗口标题栏 左上角 画个小盒子标记 空心*/
						drw_rect(drw, drw_rx, bh / 2 - boxw / 4 , boxw / 2, boxw / 2, c->isfixed, 0); 
					}
					if(c->isscratchpad) { // 如果窗口是草稿窗口 scratchpad
						// drw_rect(drw, drw_rx - win_title_button_w, boxs, boxw, boxw, c->isfixed, 0); 
						drw_rect(drw, drw_rx - win_title_button_w, bh / 2 - boxw / 4 , boxw / 2, boxw / 2, c->isfixed, 0);
					}
					if (c->isfloating) { // 如果窗口浮动
						// drw_rect(drw, x + boxs, boxs, boxw, boxw, c->isfixed, 0); /* 在置顶的悬浮窗口 窗口标题栏 左上角 画个小盒子标记 空心*/
						drw_rect(drw, drw_rx, boxs, boxw / 2, boxw / 2, c->isfixed, 0); 
						if (c->isalwaysontop) {
							// drw_rect(drw, x + boxs, bh - boxw, boxw, boxw, 0, 0);
							drw_rect(drw, drw_rx - win_title_button_w, boxs, boxw, boxw, 0, 0); /* 在置顶的悬浮窗口 窗口标题栏 左上角 悬浮的盒子标记画个盒子*/
						}
					}
					x += tabw - win_title_button_w;
				}
			}
		} else {
			drw_setscheme(drw, scheme[SchemeNorm]);
			drw_rect(drw, x, 0, w- 2 * sp, bh, 1, 1);
		}
	}
	m->bt = n;
	m->btw = w;
	drw_map(drw, m->barwin, 0, 0, m->ww - stw, bh);
}

void
drawbars(void)
{
	Monitor *m;

	for (m = mons; m; m = m->next)
		drawbar(m);
}

void
drawtabs(void) {
	Monitor *m;

	for(m = mons; m; m = m->next)
		drawtab(m);
}

static int
cmpint(const void *p1, const void *p2) {
  /* The actual arguments to this function are "pointers to
     pointers to char", but strcmp(3) arguments are "pointers
     to char", hence the following cast plus dereference */
  return *((int*) p1) > * (int*) p2;
}

void
drawtab(Monitor *m) {
	Client *c;
	int i;
	int itag = -1;
	char view_info[50];
	int view_info_w = 0;
	int sorted_label_widths[MAXTABS];
	int tot_width,buttons_w,tabbar_wintitle_button_w;
	int maxsize = bh;
	int x = 0;
	int w = 0;
	int boxs = drw->fonts->h / 9;
	int boxw = drw->fonts->h / 6 + 2;

	// char *btn_prev = "";
	// char *btn_next = "";
	// char *btn_close ="";
	char *btn_prev  = tab_btn_prev;
	char *btn_next  = tab_btn_next;
	char *btn_close = tab_btn_close;

	// int mw = m->ww - 2 * m->gappov;
	// int mw = m->ww;
	int mw = m->ww - 2 * tabsidepad;

	// 按钮宽度计算
	buttons_w += TEXTW(btn_prev) + tabbuttonpad;
	buttons_w += TEXTW(btn_next) + tabbuttonpad;
	buttons_w += TEXTW(btn_close);
	tot_width = buttons_w;

	// tag标签信息宽度计算
	// //view_info: indicate the tag which is displayed in the view
	// for(i = 0; i < LENGTH(tags); ++i){
	// 	if((selmon->tagset[selmon->seltags] >> i) & 1) {
	// 		if(itag >=0){ //more than one tag selected
	// 			itag = -1;
	// 			break;
	// 		}
	// 		itag = i;
	// 	}
	// }

	// if(0 <= itag  && itag < LENGTH(tags)){
	// 	snprintf(view_info, sizeof view_info, "[%s]", tags[itag]);
	// } else {
	// 	strncpy(view_info, "[...]", sizeof view_info);
	// }
	// view_info[sizeof(view_info) - 1 ] = 0;
	// view_info_w = TEXTW(view_info);
	// tot_width += view_info_w;

	view_info_w = 0;
	tot_width += view_info_w;

	// 窗口标题 宽度计算
	/* Calculates number of labels and their width */
	m->ntabs = 0;
	for(c = m->clients; c; c = c->next) {
		if(!ISVISIBLE(c)) continue;
		// m->tab_widths[m->ntabs] = TEXTW(c->name);
		tabbar_wintitle_button_w = TEXTW(wintitlebutton);
		if (c->icon)
			m->tab_widths[m->ntabs] = MIN(TEXTW(c->name) + tabbar_wintitle_button_w + c->icw, 250);
		else
			m->tab_widths[m->ntabs] = MIN(TEXTW(c->name) + tabbar_wintitle_button_w, 250);
		m->tab_widths[m->ntabs] = MAX(m->tab_widths[m->ntabs], 200);
		tot_width += m->tab_widths[m->ntabs];
		++m->ntabs;
		if(m->ntabs >= MAXTABS) break;
	}

	if(tot_width > mw){ //not enough space to display the labels, they need to be truncated
	// if(tot_width > mw - buttons_w - view_info_w){ //not enough space to display the labels, they need to be truncated
		memcpy(sorted_label_widths, m->tab_widths, sizeof(int) * m->ntabs);
		qsort(sorted_label_widths, m->ntabs, sizeof(int), cmpint);
		tot_width = view_info_w;
		for(i = 0; i < m->ntabs; ++i){
			if(tot_width + (m->ntabs - i) * sorted_label_widths[i] > m->ww)
				break;
				tot_width += sorted_label_widths[i];
		}
		// maxsize = (m->ww - tot_width) / (m->ntabs - i);
		maxsize = (mw- tot_width) / (m->ntabs - i);
		// maxsize = (mw - buttons_w - view_info_w) / (m->ntabs - i);
	} else{
		// maxsize = m->ww;
		maxsize = mw;
	}
	i = 0;

	/* cleans window */
	drw_setscheme(drw, scheme[TabNorm]);
	drw_rect(drw, 0, 0, mw, th, 1, 1);

	for(c = m->clients; c; c = c->next) {
		if(!ISVISIBLE(c)) 
			continue;
		if(i >= m->ntabs) 
			break;
		if(m->tab_widths[i] >  maxsize) 
			m->tab_widths[i] = maxsize;
		w = m->tab_widths[i];
		// drw_setscheme(drw, scheme[(c == m->sel) ? SchemeSel : SchemeNorm]);
		drw_setscheme(drw, scheme[(c == m->sel) ? TabSel : TabNorm]);

		// tabbar_wintitle_button_w = TEXTW(wintitlebutton);
		// drw_setscheme(drw, scheme[SchemeNorm]);
		// x = drw_text(drw, x, 0, tabbar_wintitle_button_w, bh, lrpad / 2, wintitlebutton, 0);
		x = drw_text(drw, x, 0, tabbar_wintitle_button_w, th, lrpad / 2, wintitlebutton, 0);

		// drw_text(drw, x, 0, w, th, 0, c->name, 0);
		// drw_text(drw, x + tabhorizpado / 2, tabvertpad / 2, w - tabhorizpado - tabbar_wintitle_button_w, th - tabvertpad, tabhorizpado / 2, c->name, 0);
		/* 有窗口图标 图标不重复 */
		drw_text(drw, x, 0, w - tabbar_wintitle_button_w, th, (c->icon ? c->icw + ICONSPACING : 0), c->name, 0);
		if (c->icon) {
			// drw_pic(drw, x + lrpad / 2 , (bh - c->ich) / 2, c->icw, c->ich, c->icon);
			drw_pic(drw, x, (bh - c->ich) / 2, c->icw, c->ich, c->icon);
		}
		if (c->isfloating) {
			drw_rect(drw, x + boxs, boxs, boxw, boxw, c->isfixed, 0); /* 在置顶的悬浮窗口 窗口标题栏 左上角 画个小盒子标记 空心*/
			// if (m->sel->isalwaysontop)
			if (c->isalwaysontop) {
				drw_rect(drw, x + boxs + boxs / 2, boxs + boxs / 2, boxw / 2, boxw / 2, 0, 0); /* 在置顶的悬浮窗口 窗口标题栏 左上角 悬浮的盒子标记中心再画个盒子*/
			}
		}
		// x += w;
		x += w - tabbar_wintitle_button_w;
		++i;
	}

	/* cleans interspace between window names and current viewed tag label */
	// w = m->ww - view_info_w - x;
	// w = mw - buttons_w - x;
	w = mw - view_info_w - buttons_w - x;
	drw_setscheme(drw, scheme[TabNorm]);
	drw_text(drw, x, 0, w, th, 0, "", 0);

	/* view info */
	x += w;
	w = view_info_w;
	drw_setscheme(drw, scheme[TabNorm]);
	drw_text(drw, x, 0, w, th, 0, view_info, 0);

	w = view_info_w;
	x += w;

	drw_setscheme(drw, scheme[SchemeBtnPrev]);
	w = TEXTW(btn_prev) + tabbuttonpad;
	// m->tab_btn_w[0] = w;
	drw_text(drw, x, 0, w, th, 0, btn_prev, 0);
	x += w;
	drw_setscheme(drw, scheme[SchemeBtnNext]);
	w = TEXTW(btn_next) + tabbuttonpad;
	// m->tab_btn_w[1] = w;
	drw_text(drw, x, 0, w, th, 0, btn_next, 0);
	x += w;
	drw_setscheme(drw, scheme[SchemeBtnClose]);
	w = TEXTW(btn_close);
	// m->tab_btn_w[2] = w;
	drw_text(drw, x, 0, w, th, 0, btn_close, 0);
	x += w;

	drw_map(drw, m->tabwin, 0, 0, m->ww - 2*tabsidepad, th);
}

void
enternotify(XEvent *e)
{
	Client *c;
	Monitor *m;
	XCrossingEvent *ev = &e->xcrossing;

	if ((ev->mode != NotifyNormal || ev->detail == NotifyInferior) && ev->window != root)
		return;
	c = wintoclient(ev->window);
	m = c ? c->mon : wintomon(ev->window);
	if (m != selmon) {
		unfocus(selmon->sel, 1);
		selmon = m;
	} else if (!c || c == selmon->sel)
		return;
	focus(c);
}

void
expose(XEvent *e)
{
	Monitor *m;
	XExposeEvent *ev = &e->xexpose;

	if (ev->count == 0 && (m = wintomon(ev->window))) {
		drawbar(m);
		if (m == selmon)
			updatesystray();
		drawtab(m);
	}
}

void
focus(Client *c)
{
	if (!c || !ISVISIBLE(c))
		for (c = selmon->stack; c && (!ISVISIBLE(c) || HIDDEN(c)); c = c->snext);
	if (selmon->sel && selmon->sel != c) {
		unfocus(selmon->sel, 0);

		if (selmon->hidsel) {
			hidewin(selmon->sel);
			if (c)
				arrange(c->mon);
			selmon->hidsel = 0;
		}
	}
	if (c) {
		if (c->mon != selmon)
			selmon = c->mon;
		if (c->isurgent)
			seturgent(c, 0);
		detachstack(c);
		attachstack(c);
		grabbuttons(c, 1);
		XSetWindowBorder(dpy, c->win, scheme[SchemeSel][ColBorder].pixel);
		setfocus(c);
	} else {
		XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
		XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
	}
	selmon->sel = c;
	drawbars();
	drawtabs();
}

/* there are some broken focus acquiring clients needing extra handling */
void
focusin(XEvent *e)
{
	XFocusChangeEvent *ev = &e->xfocus;

	if (selmon->sel && ev->window != selmon->sel->win)
		setfocus(selmon->sel);
}

void
focusmon(const Arg *arg)
{
	Monitor *m;

	if (!mons->next)
		return;
	if ((m = dirtomon(arg->i)) == selmon)
		return;
	unfocus(selmon->sel, 0);
	selmon = m;
	focus(NULL);
}

void
focusstackvis(const Arg *arg) {
	focusstack(arg->i, 0);
}

void
focusstackhid(const Arg *arg) {
	focusstack(arg->i, 1);
}

void
focusstack(int inc, int hid)
{
	Client *c = NULL, *i;
	// if no client selected AND exclude hidden client; if client selected but fullscreened
	if ((!selmon->sel && !hid) || (selmon->sel && selmon->sel->isfullscreen && lockfullscreen)) 
		return;
	if (!selmon->clients)
		return;
	if (inc > 0) {
		if (selmon->sel)
			for (c = selmon->sel->next;
					c && (!ISVISIBLE(c) || (!hid && HIDDEN(c)));
					c = c->next);
		if (!c)
			for (c = selmon->clients;
					c && (!ISVISIBLE(c) || (!hid && HIDDEN(c)));
					c = c->next);
	} else {
		if (selmon->sel) {
			for (i = selmon->clients; i != selmon->sel; i = i->next)
				if (ISVISIBLE(i) && !(!hid && HIDDEN(i)))
					c = i;
		} else
			c = selmon->clients;
		if (!c)
			for (; i; i = i->next)
				if (ISVISIBLE(i) && !(!hid && HIDDEN(i)))
					c = i;
	}
	if (c) {
		focus(c);
		restack(selmon);
		if (HIDDEN(c)) {
			showwin(c);
			c->mon->hidsel = 1;
		}
	}
}
void
focusstackwrapper(const Arg *arg) {
    focusstack(arg->i, 0); // 0 表示不隐藏窗口
}

static void
focusurgent(const Arg *arg) {
	Monitor *m;
	Client *c;
	int i;
	for(m=mons; m; m=m->next){
		for(c=m->clients; c && !c->isurgent; c=c->next);
		if(c) {
			unfocus(selmon->sel, 0);
			selmon = m;
			for(i=0; i < LENGTH(tags) && !((1 << i) & c->tags); i++);
			if(i < LENGTH(tags)) {
				const Arg a = {.ui = 1 << i};
				view(&a);
				if(HIDDEN(c))
					showwin(c);
				focus(c);
				// warp(c);
				XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w/2, c->h/2); /* 光标聚焦*/
				// if (c && c->mon == selmon) {
				// 	XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w/2, c->h/2); /* 光标聚焦*/
				// }
			}
		}
	}
}


void
focuswin(const Arg* arg){
  int iwin = arg->i;
  Client* c = NULL;
  for(c = selmon->clients; c && (iwin || !ISVISIBLE(c)) ; c = c->next){
    if(ISVISIBLE(c)) --iwin;
  };
  if(c) {
    focus(c);
    restack(selmon);
  }
}

Atom
getatomprop(Client *c, Atom prop)
{
	int di;
	unsigned long dl;
	unsigned char *p = NULL;
	Atom da, atom = None;

	/* FIXME getatomprop should return the number of items and a pointer to
	 * the stored data instead of this workaround */
	Atom req = XA_ATOM;
	if (prop == xatom[XembedInfo])
		req = xatom[XembedInfo];

	if (XGetWindowProperty(dpy, c->win, prop, 0L, sizeof atom, False, req,
		&da, &di, &dl, &dl, &p) == Success && p) {
		atom = *(Atom *)p;
		if (da == xatom[XembedInfo] && dl == 2)
			atom = ((Atom *)p)[1];
		XFree(p);
	}
	return atom;
}

static uint32_t prealpha(uint32_t p) {
	uint8_t a = p >> 24u;
	uint32_t rb = (a * (p & 0xFF00FFu)) >> 8u;
	uint32_t g = (a * (p & 0x00FF00u)) >> 8u;
	return (rb & 0xFF00FFu) | (g & 0x00FF00u) | (a << 24u);
}

Picture
geticonprop(Window win, unsigned int *picw, unsigned int *pich)
{
	int format;
	unsigned long n, extra, *p = NULL;
	Atom real;

	if (XGetWindowProperty(dpy, win, netatom[NetWMIcon], 0L, LONG_MAX, False, AnyPropertyType, 
						   &real, &format, &n, &extra, (unsigned char **)&p) != Success)
		return None; 
	if (n == 0 || format != 32) { XFree(p); return None; }

	unsigned long *bstp = NULL;
	uint32_t w, h, sz;
	{
		unsigned long *i; const unsigned long *end = p + n;
		uint32_t bstd = UINT32_MAX, d, m;
		for (i = p; i < end - 1; i += sz) {
			if ((w = *i++) >= 16384 || (h = *i++) >= 16384) { XFree(p); return None; }
			if ((sz = w * h) > end - i) break;
			if ((m = w > h ? w : h) >= ICONSIZE && (d = m - ICONSIZE) < bstd) { bstd = d; bstp = i; }
		}
		if (!bstp) {
			for (i = p; i < end - 1; i += sz) {
				if ((w = *i++) >= 16384 || (h = *i++) >= 16384) { XFree(p); return None; }
				if ((sz = w * h) > end - i) break;
				if ((d = ICONSIZE - (w > h ? w : h)) < bstd) { bstd = d; bstp = i; }
			}
		}
		if (!bstp) { XFree(p); return None; }
	}

	if ((w = *(bstp - 2)) == 0 || (h = *(bstp - 1)) == 0) { XFree(p); return None; }

	uint32_t icw, ich;
	if (w <= h) {
		ich = ICONSIZE; icw = w * ICONSIZE / h;
		if (icw == 0) icw = 1;
	}
	else {
		icw = ICONSIZE; ich = h * ICONSIZE / w;
		if (ich == 0) ich = 1;
	}
	*picw = icw; *pich = ich;

	uint32_t i, *bstp32 = (uint32_t *)bstp;
	for (sz = w * h, i = 0; i < sz; ++i) bstp32[i] = prealpha(bstp[i]);

	Picture ret = drw_picture_create_resized(drw, (char *)bstp, w, h, icw, ich);
	XFree(p);

	return ret;
}

int
getrootptr(int *x, int *y)
{
	int di;
	unsigned int dui;
	Window dummy;

	return XQueryPointer(dpy, root, &dummy, &dummy, x, y, &di, &di, &dui);
}

long
getstate(Window w)
{
	int format;
	long result = -1;
	unsigned char *p = NULL;
	unsigned long n, extra;
	Atom real;

	if (XGetWindowProperty(dpy, w, wmatom[WMState], 0L, 2L, False, wmatom[WMState],
		&real, &format, &n, &extra, (unsigned char **)&p) != Success)
		return -1;
	if (n != 0)
		result = *p;
	XFree(p);
	return result;
}

unsigned int
getsystraywidth()
{
	unsigned int w = 0;
	Client *i;
	if(showsystray)
		for(i = systray->icons; i; w += i->w + systrayspacing, i = i->next) ;
	return w ? w + systrayspacing : 1;
}

int
gettextprop(Window w, Atom atom, char *text, unsigned int size)
{
	char **list = NULL;
	int n;
	XTextProperty name;

	if (!text || size == 0)
		return 0;
	text[0] = '\0';
	if (!XGetTextProperty(dpy, w, &name, atom) || !name.nitems)
		return 0;
	if (name.encoding == XA_STRING) {
		strncpy(text, (char *)name.value, size - 1);
	} else if (XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success && n > 0 && *list) {
		strncpy(text, *list, size - 1);
		XFreeStringList(list);
	}
	text[size - 1] = '\0';
	XFree(name.value);
	return 1;
}

void
grabbuttons(Client *c, int focused)
{
	updatenumlockmask();
	{
		unsigned int i, j;
		unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
		XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
		if (!focused)
			XGrabButton(dpy, AnyButton, AnyModifier, c->win, False,
				BUTTONMASK, GrabModeSync, GrabModeSync, None, None);
		for (i = 0; i < LENGTH(buttons); i++)
			if (buttons[i].click == ClkClientWin)
				for (j = 0; j < LENGTH(modifiers); j++)
					XGrabButton(dpy, buttons[i].button,
						buttons[i].mask | modifiers[j],
						c->win, False, BUTTONMASK,
						GrabModeAsync, GrabModeSync, None, None);
	}
}

void
// grabkeys(void)
grabdefkeys(void)
{
	updatenumlockmask();
	{
		unsigned int i, j;
		unsigned int modifiers[] = { 0, LockMask, numlockmask, numlockmask|LockMask };
		KeyCode code;

		XUngrabKey(dpy, AnyKey, AnyModifier, root);
		for (i = 0; i < LENGTH(keys); i++)
			if ((code = XKeysymToKeycode(dpy, keys[i].keysym)))
				for (j = 0; j < LENGTH(modifiers); j++)
					XGrabKey(dpy, code, keys[i].mod | modifiers[j], root,
						True, GrabModeAsync, GrabModeAsync);
	}
}

void
hide(const Arg *arg)
{
	hidewin(selmon->sel);
	focus(NULL);
	arrange(selmon);
}

void
hidewin(Client *c) {
	if (!c || HIDDEN(c))
		return;

	Window w = c->win;
	static XWindowAttributes ra, ca;

	// more or less taken directly from blackbox's hide() function
	XGrabServer(dpy);
	XGetWindowAttributes(dpy, root, &ra);
	XGetWindowAttributes(dpy, w, &ca);
	// prevent UnmapNotify events
	XSelectInput(dpy, root, ra.your_event_mask & ~SubstructureNotifyMask);
	XSelectInput(dpy, w, ca.your_event_mask & ~StructureNotifyMask);
	XUnmapWindow(dpy, w);
	setclientstate(c, IconicState);
	XSelectInput(dpy, root, ra.your_event_mask);
	XSelectInput(dpy, w, ca.your_event_mask);
	XUngrabServer(dpy);
}

void
hideotherwins(const Arg *arg) {
	if (!selmon->sel) {
		return;
	} else {
		/* 只隐藏当前tags的 */
		// for(Client *c = selmon->seltags; c; c = c->next){
		for(Client *c = selmon->clients; c; c = c->next){
			if (c == selmon->sel ){
				if (HIDDEN(c)){ // 如果选中窗口是隐藏的
					showwin(c);
				}
			} else {
				if (c->tags == selmon->sel->tags)
				{ // 相同tag的其他窗口才隐藏
					if(c->isalwaysontop != 1) {
						// 没有被设置isalwaysontop的隐藏
						hidewin(c);
					}
				}
			}
		}
		// /* 只隐藏当前监视器的 */
		// //  查找范围为当前的监视器
		// for(Client *c = selmon->clients; c; c = c->next){
		// 	if (c == selmon->sel ){
		// 		if (HIDDEN(c)){ // 如果选中窗口是隐藏的
		// 			showwin(c);
		// 		}
		// 	} else {
		// 		hidewin(c);
		// 	}
		// }
		
		/* 其他监视器的也隐藏 */
		// for(Monitor *m = mons; m; m = m->next) {
		//     //  查找范围为全部所有的监视器
		// 	for(Client *c = m->clients; c; c = c->next){
		// 		if (c == selmon->sel ){
		// 			if (HIDDEN(c)){ // 如果选中窗口是隐藏的
		// 				showwin(c);
		// 			}
		// 		} else {
		// 			hidewin(c);
		// 		}
		// 	}
		// }
	}

	arrange(selmon);	
}

void
showonlyorall(const Arg *arg) {
	Client *c;
	if (issinglewin(NULL) || !selmon->sel) {
		for (c = selmon->clients; c; c = c->next){
			if (ISVISIBLE(c)) {
				showwin(c);
				// show(c);
			}
		}
	} else {
		hideotherwins(&(Arg) { .v = selmon->sel });
	}
}

void
floatingfullwinscreen(const Arg *arg)
{
	// Monitor *m;
	Client *c;
	int nh, nw, nx, ny;

	c = selmon->sel;
	if (!c || !c->isfloating)
		 return;
	nulllayoutfullwinscreen(arg);
	// int oe = enablegaps, ie = enablegaps, ohh, ohw, ohx, ohy;
	// ohx = c->oldx;
	// ohy = c->oldy;
	// ohw = c->oldw;
	// ohh = c->oldh;
	// // 全屏时窗口位置与宽高
	// // - 减去外框 、减去间距
	// nx = selmon->wx + selmon->gappov*oe;
	// ny = selmon->wy + selmon->gappoh*oe;
	// nw = selmon->ww - 2*selmon->gappov*oe - 2*c->bw;
	// nh = selmon->wh - 2*selmon->gappoh*oe - 2*c->bw;

	// // 去掉一些中间改变但是 状态为未恢复非全屏的情况
	// if( (c->iswinfullscreen == 1 && (c->w != nw &&  c->h != nh && c->x != nx &&  c->y != ny))
	//  )
	// {
	// 	c->iswinfullscreen = selmon->sel->iswinfullscreen = 0;
	// 	system("notify-send 已经被改为不全屏了");
	// }
	// // 判断当前窗口是否等于监视器窗口假全屏款
	// // if(selmon->ww == c->w && selmon->wh == c->h) {
	// if( (c->w == nw &&  c->h == nh
	// && c->x == nx &&  c->y == ny)
	// || c->iswinfullscreen == 1
	// ) {
	// 	system("notify-send 恢复全屏前原来位置与大小");
	// 	nx = c->oldx;
	// 	ny = c->oldy;
	// 	nw = c->oldw;
	// 	nh = c->oldh;
	// 	// 重设窗口位置和大小
	// 	c->iswinfullscreen = selmon->sel->iswinfullscreen = 0;
	// 	resize(c, nx, ny, nw, nh, True);
	// } else {
	// 	system("notify-send 重设窗口位置和大小假全屏");
	// 	// 重设窗口位置和大小
	// 	c->iswinfullscreen = 1;
	// 	resize(c, nx, ny, nw, nh, True);
	// 	// 改变后检查，如果像mpv等比例全屏，无法宽高达到最大，则居中
		
	// 	// system('notify-send "[DEBUG] 假全屏"');
	// 	if(c->h < nh || c->w < nw) {
	// 		system("notify-send 宽高锁定－满宽或满高居中模式");
	// 		// 
	// 		// 重设窗口位置和大小 水平居中
	// 		// resize(c, c->x, c->y + (nw - c->w) / 2, c->w, c->h, True);
	// 		// 重设窗口位置和大小 垂直居中
	// 		// resize(c, c->x + (nw - c->w) / 2, c->y, c->w, c->h, True);
	// 		// system("notify-send [DEBUG]-水平居中");
	// 		XWindowChanges wc;
	// 		c->oldx = ohx;
	// 		c->oldy = ohy;
	// 		c->oldw = ohw;
	// 		c->oldh = ohh;
	// 		c->x = wc.x = c->x + (nw - c->w) / 2;
	// 		c->y = wc.y = c->y + (nw - c->w) / 2;
	// 		// 有边框
	// 		c->w = wc.width  = c->w;
	// 		c->h = wc.height = c->h;
	// 		wc.border_width  = c->bw;
	// 		// 无边框
	// 		// c->w = wc.width += c->bw * 2;
	// 		// c->h = wc.height += c->bw * 2;
	// 		// wc.border_width = 0;
	// 		XConfigureWindow(dpy, c->win, CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc);
	// 		configure(c);
	// 		XSync(dpy, False);
			
	// 	}
	// 	// } else {
	// 	// }
	// }


	// 光标移动
	// XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, nw/2, nh/2);
}

void
nulllayoutfullwinscreen(const Arg *arg)
{
	Client *c;
	// Monitor *m;
	int nh, nw, nx, ny, oe = enablegaps, ie = enablegaps, ohh, ohw, ohx, ohy;

	c = selmon->sel;
	// if (!c || !(m->lt[m->sellt]->arrange == NULL))
	if (!c)
		 return;
	ohx = c->oldx;
	ohy = c->oldy;
	ohw = c->oldw;
	ohh = c->oldh;
	// 全屏时窗口位置与宽高
	// - 减去外框 、减去间距
	nx = selmon->wx + selmon->gappov*oe;
	ny = selmon->wy + selmon->gappoh*oe;
	nw = selmon->ww - 2*selmon->gappov*oe - 2*c->bw;
	nh = selmon->wh - 2*selmon->gappoh*oe - 2*c->bw;
	// if (c->iswinfullscreen == 1)
	// {
	// 	system("notify-send 1-iswinfullscreen=1");
	// } else {
	// 	system("notify-send 1-iswinfullscreen!=1");
	// }
	// 去掉一些中间改变但是 状态为未恢复非全屏的情况
	if( c->w != nw &&  c->h != nh && c->x != nx &&  c->y != ny)
	{
		c->iswinfullscreen = 0;
		selmon->sel->iswinfullscreen  = 0;
		// system("notify-send 已经被改为不全屏了");
	}
	// } else {
	// 	system("notify-send iswinfullscreen-else");
	// }
	// if (c->iswinfullscreen == 1)
	// {
	// 	system("notify-send 2-iswinfullscreen=1");
	// } else {
	// 	system("notify-send 2-iswinfullscreen!=1");
	// }
	// 判断当前窗口是否等于监视器窗口假全屏款
	// if(selmon->ww == c->w && selmon->wh == c->h) {
	if( (c->w == nw &&  c->h == nh
	&& c->x == nx &&  c->y == ny)
	|| c->iswinfullscreen == 1
	) {
		// system("notify-send 恢复全屏前原来位置与大小");
		nx = c->oldx;
		ny = c->oldy;
		nw = c->oldw;
		nh = c->oldh;
		// 重设窗口位置和大小
		c->iswinfullscreen = 0;
		resize(c, nx, ny, nw, nh, True);
	} else {
		// system("notify-send 重设窗口位置和大小假全屏");
		// 重设窗口位置和大小
		c->iswinfullscreen = selmon->sel->iswinfullscreen  = 1;
		resize(c, nx, ny, nw, nh, True);
		// 改变后检查，如果像mpv等比例全屏，无法宽高达到最大，则居中
		
		// system('notify-send "[DEBUG] 假全屏"');
		// if(c->h < nh || c->w < nw) {
		// 	system("notify-send 宽高锁定－满宽或满高居中模式");
		// 	// 
		// 	// 重设窗口位置和大小 水平居中
		// 	// resize(c, c->x, c->y + (nw - c->w) / 2, c->w, c->h, True);
		// 	// 重设窗口位置和大小 垂直居中
		// 	// resize(c, c->x + (nw - c->w) / 2, c->y, c->w, c->h, True);
		// 	// system("notify-send [DEBUG]-水平居中");
		// 	XWindowChanges wc;
		// 	c->oldx = ohx;
		// 	c->oldy = ohy;
		// 	c->oldw = ohw;
		// 	c->oldh = ohh;
		// 	c->x = wc.x = c->x + (nw - c->w) / 2;
		// 	c->y = wc.y = c->y + (nw - c->w) / 2;
		// 	// 有边框
		// 	c->w = wc.width  = c->w;
		// 	c->h = wc.height = c->h;
		// 	wc.border_width  = c->bw;
		// 	// 无边框
		// 	// c->w = wc.width += c->bw * 2;
		// 	// c->h = wc.height += c->bw * 2;
		// 	// wc.border_width = 0;
		// 	XConfigureWindow(dpy, c->win, CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc);
		// 	configure(c);
		// 	XSync(dpy, False);
		// }
	}
}

void
fullwinscreen(const Arg *arg)
{
	Client *c ;
	// Monitor *m ;
	// c = selmon->sel;
	if (!selmon->sel) {
		return;
	}
	// if (c->isfullscreen) {
	if (selmon->sel->isfullscreen) {
		// fullscreen(c);
		// fullscreen(selmon->sel);
		togglefullscr(arg);
	} else if (selmon->sel->isfloating) { // 如果是浮动窗口
		// 九宫格位置居中
		// moveplace(&(Arg) { .ui = WIN_C });
		// 浮动窗口假全屏
		// floatingfullwinscreen(selmon->sel);
		floatingfullwinscreen(arg);
	} else {
		if (issinglewin(NULL) || !selmon->sel) {
			for (c = selmon->clients; c; c = c->next){
				if (ISVISIBLE(c)) {
					showwin(c);
					// show(c);
				}
			}
		} else {
			if (selmon->lt[selmon->sellt]->arrange == tile
				|| selmon->lt[selmon->sellt]->arrange == deck
				|| selmon->lt[selmon->sellt]->arrange == grid
				) {
				hideotherwins(&(Arg) { .v = selmon->sel });
			} else if (selmon->lt[selmon->sellt]->arrange == monocle) {
				togglefullscr(arg);
			} else if (selmon->lt[selmon->sellt]->arrange == NULL) { // 如果没有布局，则
				// nulllayoutfullwinscreen(selmon->sel);
				nulllayoutfullwinscreen(arg);
				// togglefullscr(arg);
			} else {
				// nulllayoutfullwinscreen(arg);
				hideotherwins(&(Arg) { .v = selmon->sel });
			}
		}
	}

}

void
clickshowonlyorall(const Arg *arg)
{
	// killclient(arg); // 关闭窗口
	Client *c = (Client*)arg->v;

	if (HIDDEN(c) && !c->isfloating){
		showwin(c);
	}
	if (c == selmon->sel) {
		arrange(c->mon);
	} else {
		focus(c);
		restack(selmon);
	}
	if(c->isfloating) {
		if( HIDDEN(c) ) 
			showwin(c);
		else
			hidewin(c);
	} else {
		showonlyorall(arg); // 只显示当前，或显示所有
	}
	
}

int
issinglewin(const Arg *arg) {
    Client *c = NULL;
    // int cot = 0, tag = selmon->tagset[selmon->seltags];
    int cot = 0;

    for (c = selmon->clients; c; c = c->next) {
        if (ISVISIBLE(c) && !HIDDEN(c))
            cot++;
        if (cot > 1)
            return 0;
    }
    return 1;
}

void
incnmaster(const Arg *arg)
{
	selmon->nmaster = selmon->pertag->nmasters[selmon->pertag->curtag] = MAX(selmon->nmaster + arg->i, 0);
	arrange(selmon);
}

#ifdef XINERAMA
static int
isuniquegeom(XineramaScreenInfo *unique, size_t n, XineramaScreenInfo *info)
{
	while (n--)
		if (unique[n].x_org == info->x_org && unique[n].y_org == info->y_org
		&& unique[n].width == info->width && unique[n].height == info->height)
			return 0;
	return 1;
}
#endif /* XINERAMA */

void
// keypress(XEvent *e)
defkeypress(XEvent *e)
{
	unsigned int i;
	KeySym keysym;
	XKeyEvent *ev;

	ev = &e->xkey;
	keysym = XKeycodeToKeysym(dpy, (KeyCode)ev->keycode, 0);
	for (i = 0; i < LENGTH(keys); i++)
		if (keysym == keys[i].keysym
		&& CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
		&& keys[i].func)
			keys[i].func(&(keys[i].arg));
}

int
fake_signal(void)
{
	char fsignal[256];
	char indicator[9] = "fsignal:";
	char str_signum[16];
	int i, v, signum;
	size_t len_fsignal, len_indicator = strlen(indicator);

	// Get root name property
	if (gettextprop(root, XA_WM_NAME, fsignal, sizeof(fsignal))) {
		len_fsignal = strlen(fsignal);

		// Check if this is indeed a fake signal
		if (len_indicator > len_fsignal ? 0 : strncmp(indicator, fsignal, len_indicator) == 0) {
			memcpy(str_signum, &fsignal[len_indicator], len_fsignal - len_indicator);
			str_signum[len_fsignal - len_indicator] = '\0';

			// Convert string value into managable integer
			for (i = signum = 0; i < strlen(str_signum); i++) {
				v = str_signum[i] - '0';
				if (v >= 0 && v <= 9) {
					signum = signum * 10 + v;
				}
			}

			// Check if a signal was found, and if so handle it
			if (signum)
				for (i = 0; i < LENGTH(signals); i++)
					if (signum == signals[i].signum && signals[i].func)
						signals[i].func(&(signals[i].arg));

			// A fake signal was sent
			return 1;
		}
	}

	// No fake signal was sent, so proceed with update
	return 0;
}

void
killclient(const Arg *arg)
{
	if (!selmon->sel)
		return;

	if (!sendevent(selmon->sel->win, wmatom[WMDelete], NoEventMask, wmatom[WMDelete], CurrentTime, 0 , 0, 0)) {
		XGrabServer(dpy);
		XSetErrorHandler(xerrordummy);
		XSetCloseDownMode(dpy, DestroyAll);
		XKillClient(dpy, selmon->sel->win);
		XSync(dpy, False);
		XSetErrorHandler(xerror);
		XUngrabServer(dpy);
	}
}

void
clickfocusandkillclient(const Arg *arg)
{
	Client *c = (Client*)arg->v;
	// 关闭点击选中的窗口
	// 先聚焦 再关闭
	focus(c);
	killclient(arg);
}

void
manage(Window w, XWindowAttributes *wa)
{
	Client *c, *t = NULL;
	Window trans = None;
	XWindowChanges wc;

	c = ecalloc(1, sizeof(Client));
	c->win = w;
	/* geometry */
	c->x = c->oldx = wa->x;
	c->y = c->oldy = wa->y;
	c->w = c->oldw = wa->width;
	c->h = c->oldh = wa->height;
	c->oldbw = wa->border_width;
	c->cfact = 1.0;
	
	updateicon(c);
	updatetitle(c);
	if (XGetTransientForHint(dpy, w, &trans) && (t = wintoclient(trans))) {
		c->mon = t->mon;
		c->tags = t->tags;
	} else {
		c->mon = selmon;
		applyrules(c);
	}

	if (c->x + WIDTH(c) > c->mon->wx + c->mon->ww)
		c->x = c->mon->wx + c->mon->ww - WIDTH(c);
	if (c->y + HEIGHT(c) > c->mon->wy + c->mon->wh)
		c->y = c->mon->wy + c->mon->wh - HEIGHT(c);
	c->x = MAX(c->x, c->mon->wx);
	c->y = MAX(c->y, c->mon->wy);
	c->bw = borderpx;

	wc.border_width = c->bw;
	XConfigureWindow(dpy, w, CWBorderWidth, &wc);
	XSetWindowBorder(dpy, w, scheme[SchemeNorm][ColBorder].pixel);
	configure(c); /* propagates border_width, if size doesn't change */
	updatewindowtype(c);
	updatesizehints(c);
	updatewmhints(c);
	updatemotifhints(c);
	if (c->iscentered) {
		c->x = c->mon->mx + (c->mon->mw - WIDTH(c)) / 2;
		c->y = c->mon->my + (c->mon->mh - HEIGHT(c)) / 2;
	}
	XSelectInput(dpy, w, EnterWindowMask|FocusChangeMask|PropertyChangeMask|StructureNotifyMask);
	grabbuttons(c, 0);
	if (!c->isfloating)
		c->isfloating = c->oldstate = trans != None || c->isfixed;
	if (c->isfloating)
		XRaiseWindow(dpy, c->win);
	attach(c);
	attachstack(c);
	XChangeProperty(dpy, root, netatom[NetClientList], XA_WINDOW, 32, PropModeAppend,
		(unsigned char *) &(c->win), 1);
	XMoveResizeWindow(dpy, c->win, c->x + 2 * sw, c->y, c->w, c->h); /* some windows require this */
	if (!HIDDEN(c))
		setclientstate(c, NormalState);
	if (c->mon == selmon)
		unfocus(selmon->sel, 0);
	c->mon->sel = c;
	arrange(c->mon);
	if (!HIDDEN(c))
		XMapWindow(dpy, c->win);
	focus(NULL);
}

void
mappingnotify(XEvent *e)
{
	XMappingEvent *ev = &e->xmapping;

	XRefreshKeyboardMapping(ev);
	if (ev->request == MappingKeyboard)
		grabkeys();
}

void
maprequest(XEvent *e)
{
	static XWindowAttributes wa;
	XMapRequestEvent *ev = &e->xmaprequest;
	Client *i;
	
	if ((i = wintosystrayicon(ev->window))) {
		sendevent(i->win, netatom[Xembed], StructureNotifyMask, CurrentTime, XEMBED_WINDOW_ACTIVATE, 0, systray->win, XEMBED_EMBEDDED_VERSION);
		resizebarwin(selmon);
		updatesystray();
	}

	if (!XGetWindowAttributes(dpy, ev->window, &wa) || wa.override_redirect)
		return;
	if (!wintoclient(ev->window))
		manage(ev->window, &wa);
}

void
monocle(Monitor *m)
{
	unsigned int n = 0, oe = enablegaps, ie = enablegaps;
	Client *c;

	for (c = m->clients; c; c = c->next)
		if (ISVISIBLE(c))
			n++;
	if (n > 0) /* override layout symbol */
		snprintf(m->ltsymbol, sizeof m->ltsymbol, "[M%d]", n);
	for (c = nexttiled(m->clients); c; c = nexttiled(c->next)) {
		if (m->showtab == showtab_always || (m->showtab == showtab_auto && n > 0 ) ) { // 如果开启了tabmode模式 去掉 外框间距
			resize(c, m->wx + m->gappov*oe, m->wy + m->gappoh*oe - c->bw, m->ww - 2*m->gappov*oe, (m->wh - 2 * c->bw) - 2*m->gappoh*oe, 0);
		} else {
			resize(c, m->wx + m->gappov*oe, m->wy + m->gappoh*oe, (m->ww - 2 * c->bw) - 2*m->gappov*oe, (m->wh - 2 * c->bw) - 2*m->gappoh*oe, 0);
		}
	}
}

void
motionnotify(XEvent *e)
{
	static Monitor *mon = NULL;
	Monitor *m;
	XMotionEvent *ev = &e->xmotion;

	if (ev->window != root)
		return;
	if ((m = recttomon(ev->x_root, ev->y_root, 1, 1)) != mon && mon) {
		unfocus(selmon->sel, True);
		selmon = m;
		focus(NULL);
	}
	mon = m;
}

void
movemouse(const Arg *arg)
{
	int x, y, ocx, ocy, nx, ny;
	Client *c;
	Monitor *m;
	XEvent ev;
	Time lasttime = 0;

	if (!(c = selmon->sel))
		return;
	if (c->isfullscreen) /* no support moving fullscreen windows by mouse */
		return;
	restack(selmon);
	ocx = c->x;
	ocy = c->y;
	if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
		None, cursor[CurMove]->cursor, CurrentTime) != GrabSuccess)
		return;
	if (!getrootptr(&x, &y))
		return;
	do {
		XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
		switch(ev.type) {
		case ConfigureRequest:
		case Expose:
		case MapRequest:
			handler[ev.type](&ev);
			break;
		case MotionNotify:
			if ((ev.xmotion.time - lasttime) <= (1000 / 60))
				continue;
			lasttime = ev.xmotion.time;

			nx = ocx + (ev.xmotion.x - x);
			ny = ocy + (ev.xmotion.y - y);
			if (abs(selmon->wx - nx) < snap)
				nx = selmon->wx;
			else if (abs((selmon->wx + selmon->ww) - (nx + WIDTH(c))) < snap)
				nx = selmon->wx + selmon->ww - WIDTH(c);
			if (abs(selmon->wy - ny) < snap)
				ny = selmon->wy;
			else if (abs((selmon->wy + selmon->wh) - (ny + HEIGHT(c))) < snap)
				ny = selmon->wy + selmon->wh - HEIGHT(c);
			if (!c->isfloating && selmon->lt[selmon->sellt]->arrange
			&& (abs(nx - c->x) > snap || abs(ny - c->y) > snap))
				togglefloating(NULL);
			if (!selmon->lt[selmon->sellt]->arrange || c->isfloating)
				resize(c, nx, ny, c->w, c->h, 1);
			break;
		}
	} while (ev.type != ButtonRelease);
	XUngrabPointer(dpy, CurrentTime);
	if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) {
		sendmon(c, m);
		selmon = m;
		focus(NULL);
	}
}

void
moveplace(const Arg *arg)
{
	Client *c;
	int nh, nw, nx, ny;
	c = selmon->sel;
	if (!c || (arg->ui >= 9))
		 return;
	if (selmon->lt[selmon->sellt]->arrange && !c->isfloating)
		togglefloating(NULL);
	nh = (selmon->wh / 3) - (c->bw * 2);
	nw = (selmon->ww / 3) - (c->bw * 2);
	nx = (arg->ui % 3) -1;
	ny = (arg->ui / 3) -1;
	if (nx < 0)
		nx = selmon->wx;
	else if(nx > 0)
		nx = selmon->wx + selmon->ww - nw - c->bw*2;
	else
		nx = selmon->wx + selmon->ww/2 - nw/2 - c->bw;
	if (ny <0)
		ny = selmon->wy;
	else if(ny > 0)
		ny = selmon->wy + selmon->wh - nh - c->bw*2;
	else
		ny = selmon->wy + selmon->wh/2 - nh/2 - c->bw;
	resize(c, nx, ny, nw, nh, True);
	XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, nw/2, nh/2);
}

void
moveorplace(const Arg *arg) {
	if ((!selmon->lt[selmon->sellt]->arrange || (selmon->sel && selmon->sel->isfloating)))
		movemouse(arg);
	else
		placemouse(arg);
}

void
movestack(const Arg *arg) {
	Client *c = NULL, *p = NULL, *pc = NULL, *i;

	if(arg->i > 0) {
		/* find the client after selmon->sel */
		for(c = selmon->sel->next; c && (!ISVISIBLE(c) || c->isfloating); c = c->next);
		if(!c)
			for(c = selmon->clients; c && (!ISVISIBLE(c) || c->isfloating); c = c->next);

	}
	else {
		/* find the client before selmon->sel */
		for(i = selmon->clients; i != selmon->sel; i = i->next)
			if(ISVISIBLE(i) && !i->isfloating)
				c = i;
		if(!c)
			for(; i; i = i->next)
				if(ISVISIBLE(i) && !i->isfloating)
					c = i;
	}
	/* find the client before selmon->sel and c */
	for(i = selmon->clients; i && (!p || !pc); i = i->next) {
		if(i->next == selmon->sel)
			p = i;
		if(i->next == c)
			pc = i;
	}

	/* swap c and selmon->sel selmon->clients in the selmon->clients list */
	if(c && c != selmon->sel) {
		Client *temp = selmon->sel->next==c?selmon->sel:selmon->sel->next;
		selmon->sel->next = c->next==selmon->sel?c:c->next;
		c->next = temp;

		if(p && p != c)
			p->next = c;
		if(pc && pc != selmon->sel)
			pc->next = selmon->sel;

		if(selmon->sel == selmon->clients)
			selmon->clients = c;
		else if(c == selmon->clients)
			selmon->clients = selmon->sel;

		arrange(selmon);
	}
}

void
movethrow(const Arg *arg)
{
	Client *c;
	int nh, nw, nx, ny, oe = enablegaps;
	c = selmon->sel;
	if (selmon->lt[selmon->sellt]->arrange && !c->isfloating)
		togglefloating(NULL);
	c->iswinfullscreen = selmon->sel->iswinfullscreen = 0;
	switch(arg->ui) {
		case DIR_N:
			nx = c->x;
			ny = selmon->wy + selmon->gappoh*oe;
			nw = c->w;
			nh = c->h;
			break;
		case DIR_E:
			nx = selmon->wx + selmon->ww - c->w - c->bw*2 - selmon->gappov*oe;
			ny = c->y;
			nw = c->w;
			nh = c->h;
			break;
		case DIR_S:
			nx = c->x;
			ny = selmon->wy + selmon->wh - c->h - c->bw*2 - selmon->gappoh*oe;
			nw = c->w;
			nh = c->h;
			break;
		case DIR_W:
			nx = selmon->wx + selmon->gappov*oe;
			ny = c->y;
			nw = c->w;
			nh = c->h;
			break;
		case DIR_C:
			nx = selmon->wx + ((selmon->ww - c->w - c->bw*2) / 2);
			ny = selmon->wy + ((selmon->wh - c->h - c->bw*2) / 2);
			nw = c->w;
			nh = c->h;
			break;
		case DIR_U:
			nx = selmon->wx + selmon->gappov*oe;
			ny = selmon->wy + selmon->gappoh*oe;
			nw = selmon->ww - 2*selmon->gappov*oe;
			nh = selmon->wh / 2 - 2*selmon->gappoh*oe;
			break;
		case DIR_D:
			nx = selmon->wx + selmon->gappov*oe;
			ny = selmon->wy + selmon->wh / 2 + selmon->gappoh*oe;
			nw = selmon->ww - 2*selmon->gappov*oe;
			nh = selmon->wh / 2 - 2*selmon->gappoh*oe;
			break;
		case DIR_R:
			nx = selmon->wx + selmon->ww / 2 + selmon->gappov*oe;
			ny = selmon->wy + selmon->gappoh*oe;
			nw = selmon->ww / 2 - 2*selmon->gappov*oe;
			nh = selmon->wh - 2*selmon->gappoh*oe;
			break;
		case DIR_L:
			nx = selmon->wx + selmon->gappov*oe;
			ny = selmon->wy + selmon->gappoh*oe;
			nw = selmon->ww / 2 - 2*selmon->gappov*oe;
			nh = selmon->wh - 2*selmon->gappoh*oe;
			break;
		case DIR_M:
			nx = selmon->wx + selmon->ww / 8 + selmon->gappov*oe;
			ny = selmon->wy + selmon->wh / 8 + selmon->gappoh*oe;
			nw = (selmon->ww - 2*selmon->gappov*oe) / 4 * 3;
			nh = (selmon->wh - 2*selmon->gappoh*oe) / 4 * 3;
			break;
		default:
			return;
	}
	resize(c, nx, ny, nw, nh, True);
	XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, nw/2, nh/2);
}

Client *
nexttiled(Client *c)
{
	for (; c && (c->isfloating || !ISVISIBLE(c) || HIDDEN(c)); c = c->next);
	return c;
}

void
placemouse(const Arg *arg)
{
	int x, y, px, py, ocx, ocy, nx = -9999, ny = -9999, freemove = 0;
	Client *c, *r = NULL, *at, *prevr;
	Monitor *m;
	XEvent ev;
	XWindowAttributes wa;
	Time lasttime = 0;
	int attachmode, prevattachmode;
	attachmode = prevattachmode = -1;

	if (!(c = selmon->sel) || !c->mon->lt[c->mon->sellt]->arrange) /* no support for placemouse when floating layout is used */
		return;
	if (c->isfullscreen) /* no support placing fullscreen windows by mouse */
		return;
	restack(selmon);
	prevr = c;
	if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
		None, cursor[CurMove]->cursor, CurrentTime) != GrabSuccess)
		return;

	c->isfloating = 0;
	c->beingmoved = 1;

	XGetWindowAttributes(dpy, c->win, &wa);
	ocx = wa.x;
	ocy = wa.y;

	if (arg->i == 2) // warp cursor to client center
		XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, WIDTH(c) / 2, HEIGHT(c) / 2);

	if (!getrootptr(&x, &y))
		return;

	do {
		XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
		switch (ev.type) {
		case ConfigureRequest:
		case Expose:
		case MapRequest:
			handler[ev.type](&ev);
			break;
		case MotionNotify:
			if ((ev.xmotion.time - lasttime) <= (1000 / 60))
				continue;
			lasttime = ev.xmotion.time;

			nx = ocx + (ev.xmotion.x - x);
			ny = ocy + (ev.xmotion.y - y);

			if (!freemove && (abs(nx - ocx) > snap || abs(ny - ocy) > snap))
				freemove = 1;

			if (freemove)
				XMoveWindow(dpy, c->win, nx, ny);

			if ((m = recttomon(ev.xmotion.x, ev.xmotion.y, 1, 1)) && m != selmon)
				selmon = m;

			if (arg->i == 1) { // tiled position is relative to the client window center point
				px = nx + wa.width / 2;
				py = ny + wa.height / 2;
			} else { // tiled position is relative to the mouse cursor
				px = ev.xmotion.x;
				py = ev.xmotion.y;
			}

			r = recttoclient(px, py, 1, 1);

			if (!r || r == c)
				break;

			attachmode = 0; // below
			if (((float)(r->y + r->h - py) / r->h) > ((float)(r->x + r->w - px) / r->w)) {
				if (abs(r->y - py) < r->h / 2)
					attachmode = 1; // above
			} else if (abs(r->x - px) < r->w / 2)
				attachmode = 1; // above

			if ((r && r != prevr) || (attachmode != prevattachmode)) {
				detachstack(c);
				detach(c);
				if (c->mon != r->mon) {
					arrangemon(c->mon);
					c->tags = r->mon->tagset[r->mon->seltags];
				}

				c->mon = r->mon;
				r->mon->sel = r;

				if (attachmode) {
					if (r == r->mon->clients)
						attach(c);
					else {
						for (at = r->mon->clients; at->next != r; at = at->next);
						c->next = at->next;
						at->next = c;
					}
				} else {
					c->next = r->next;
					r->next = c;
				}

				attachstack(c);
				arrangemon(r->mon);
				prevr = r;
				prevattachmode = attachmode;
			}
			break;
		}
	} while (ev.type != ButtonRelease);
	XUngrabPointer(dpy, CurrentTime);

	if ((m = recttomon(ev.xmotion.x, ev.xmotion.y, 1, 1)) && m != c->mon) {
		detach(c);
		detachstack(c);
		arrangemon(c->mon);
		c->mon = m;
		c->tags = m->tagset[m->seltags];
		attach(c);
		attachstack(c);
		selmon = m;
	}

	focus(c);
	c->beingmoved = 0;

	if (nx != -9999)
		resize(c, nx, ny, c->w, c->h, 0);
	arrangemon(c->mon);
}

void
pop(Client *c)
{
	detach(c);
	attach(c);
	focus(c);
	arrange(c->mon);
}

void
propertynotify(XEvent *e)
{
	Client *c;
	Window trans;
	XPropertyEvent *ev = &e->xproperty;

	if ((c = wintosystrayicon(ev->window))) {
		if (ev->atom == XA_WM_NORMAL_HINTS) {
			updatesizehints(c);
			updatesystrayicongeom(c, c->w, c->h);
		}
		else
			updatesystrayiconstate(c, ev);
		resizebarwin(selmon);
		updatesystray();
	}

    if ((ev->window == root) && (ev->atom == XA_WM_NAME)) {
		// updatestatus();
    		if (!fake_signal())
			updatestatus();
	} else if (ev->state == PropertyDelete)
		return; /* ignore */
	else if ((c = wintoclient(ev->window))) {
		switch(ev->atom) {
		default: break;
		case XA_WM_TRANSIENT_FOR:
			if (!c->isfloating && (XGetTransientForHint(dpy, c->win, &trans)) &&
				(c->isfloating = (wintoclient(trans)) != NULL))
				arrange(c->mon);
			break;
		case XA_WM_NORMAL_HINTS:
			c->hintsvalid = 0;
			break;
		case XA_WM_HINTS:
			updatewmhints(c);
			drawbars();
			drawtabs();
			break;
		}
		if (ev->atom == XA_WM_NAME || ev->atom == netatom[NetWMName]) {
			updatetitle(c);
			if (c == c->mon->sel)
				drawbar(c->mon);
			drawtab(c->mon);
		}
		else if (ev->atom == netatom[NetWMIcon]) {
			updateicon(c);
			if (c == c->mon->sel)
				drawbar(c->mon);
		}
		if (ev->atom == netatom[NetWMWindowType])
			updatewindowtype(c);
		if (ev->atom == motifatom)
			updatemotifhints(c);
	}
}

void
quit(const Arg *arg)
{
	// fix: reloading dwm keeps all the hidden clients hidden
	Monitor *m;
	Client *c;
	for (m = mons; m; m = m->next) {
		if (m) {
			for (c = m->stack; c; c = c->next)
				if (c && HIDDEN(c)) showwin(c);
		}
	}

	// 退出时执行脚本
	system("cd ~/.dwm/scripts; ./autostop.sh");

	running = 0;
}

Client *
recttoclient(int x, int y, int w, int h)
{
	Client *c, *r = NULL;
	int a, area = 0;

	for (c = nexttiled(selmon->clients); c; c = nexttiled(c->next)) {
		if ((a = INTERSECTC(x, y, w, h, c)) > area) {
			area = a;
			r = c;
		}
	}
	return r;
}

Monitor *
recttomon(int x, int y, int w, int h)
{
	Monitor *m, *r = selmon;
	int a, area = 0;

	for (m = mons; m; m = m->next)
		if ((a = INTERSECT(x, y, w, h, m)) > area) {
			area = a;
			r = m;
		}
	return r;
}

void
removesystrayicon(Client *i)
{
	Client **ii;

	if (!showsystray || !i)
		return;
	for (ii = &systray->icons; *ii && *ii != i; ii = &(*ii)->next);
	if (ii)
		*ii = i->next;
	free(i);
}

void
resize(Client *c, int x, int y, int w, int h, int interact)
{
	if (applysizehints(c, &x, &y, &w, &h, interact))
		resizeclient(c, x, y, w, h);
}

void
resizebarwin(Monitor *m) {
	unsigned int w = m->ww;
	if (showsystray && m == systraytomon(m) && !systrayonleft)
		w -= getsystraywidth();
	// XMoveResizeWindow(dpy, m->barwin, m->wx, m->by, w, bh);
	XMoveResizeWindow(dpy, m->barwin, m->wx + sp, m->by + vp, w -  2 * sp, bh);
}

void
resizeclient(Client *c, int x, int y, int w, int h)
{
	XWindowChanges wc;

	c->oldx = c->x; c->x = wc.x = x;
	c->oldy = c->y; c->y = wc.y = y;
	c->oldw = c->w; c->w = wc.width = w;
	c->oldh = c->h; c->h = wc.height = h;
	wc.border_width = c->bw;
	if (((nexttiled(c->mon->clients) == c && !nexttiled(c->next))
	    || &monocle == c->mon->lt[c->mon->sellt]->arrange)
	    && !c->isfullscreen && !c->isfloating) {
		// c->w = wc.width += c->bw * 2;
		// c->h = wc.height += c->bw * 2;
		wc.border_width = 0;
		// 如果像mpv等比例全屏，无法宽高达到最大，则居中
		// int nh, nw, nx, ny, oe = enablegaps, ie = enablegaps;
		int  nh, nw, oe = enablegaps;
		// - 减去间距
		// nx = selmon->wx + selmon->gappov*oe;
		// ny = selmon->wy + selmon->gappoh*oe;
		// nw = selmon->ww - 2*selmon->gappov*oe - 2*c->bw;
		// nh = selmon->wh - 2*selmon->gappoh*oe - 2*c->bw;
		nw = selmon->ww - 2*selmon->gappov*oe;
		nh = selmon->wh - 2*selmon->gappoh*oe;
		if(c->w < nw) {
			// 重设窗口位置和大小 垂直居中
			// resize(c, c->x + (nw - c->w) / 2, c->y, c->w, c->h, True);
			// system("notify-send [DEBUG]-垂直居中");
			c->x = wc.x = c->x + (nw - c->w) / 2;
		}
		if(c->h < nh) {
			// 重设窗口位置和大小 水平居中
			// resize(c, c->x, c->y + (nw - c->w) / 2, c->w, c->h, True);
			// system("notify-send [DEBUG]-水平居中");
			c->y = wc.y = c->y + (nh - c->h) / 2;
		}
	}
	// 在此添加会影响 鼠标移动拖拽等其他 请注意
	if (c->isfloating && c->iswinfullscreen && !c->beingmoved && !c->mon->isoverview)
	{
		// c->w = wc.width += c->bw * 2;
		// c->h = wc.height += c->bw * 2;
		wc.border_width = 0;
		// 如果像mpv等比例全屏，无法宽高达到最大，则居中
		// int nh, nw, nx, ny, oe = enablegaps, ie = enablegaps;
		int  nh, nw, oe = enablegaps;
		// - 减去间距
		// nx = selmon->wx + selmon->gappov*oe;
		// ny = selmon->wy + selmon->gappoh*oe;
		// nw = selmon->ww - 2*selmon->gappov*oe - 2*c->bw;
		// nh = selmon->wh - 2*selmon->gappoh*oe - 2*c->bw;
		nw = selmon->ww - 2*selmon->gappov*oe;
		nh = selmon->wh - 2*selmon->gappoh*oe;
		if(c->w < nw) {
			// 重设窗口位置和大小 垂直居中
			// resize(c, c->x + (nw - c->w) / 2, c->y, c->w, c->h, True);
			// system("notify-send [DEBUG]-垂直居中");
			c->x = wc.x = c->x + (nw - c->w) / 2;
		}
		if(c->h < nh) {
			// 重设窗口位置和大小 水平居中
			// resize(c, c->x, c->y + (nw - c->w) / 2, c->w, c->h, True);
			// system("notify-send [DEBUG]-水平居中");
			c->y = wc.y = c->y + (nh - c->h) / 2;
		}
	}
	XConfigureWindow(dpy, c->win, CWX|CWY|CWWidth|CWHeight|CWBorderWidth, &wc);
	configure(c);
	XSync(dpy, False);
}

void
resizemouse(const Arg *arg)
{
	int ocx, ocy, nw, nh;
	Client *c;
	Monitor *m;
	XEvent ev;
	Time lasttime = 0;

	if (!(c = selmon->sel))
		return;
	if (c->isfullscreen) /* no support resizing fullscreen windows by mouse */
		return;
	restack(selmon);
	ocx = c->x;
	ocy = c->y;
	if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
		None, cursor[CurResize]->cursor, CurrentTime) != GrabSuccess)
		return;
	XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
	do {
		XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
		switch(ev.type) {
		case ConfigureRequest:
		case Expose:
		case MapRequest:
			handler[ev.type](&ev);
			break;
		case MotionNotify:
			if ((ev.xmotion.time - lasttime) <= (1000 / 60))
				continue;
			lasttime = ev.xmotion.time;

			nw = MAX(ev.xmotion.x - ocx - 2 * c->bw + 1, 1);
			nh = MAX(ev.xmotion.y - ocy - 2 * c->bw + 1, 1);
			if (c->mon->wx + nw >= selmon->wx && c->mon->wx + nw <= selmon->wx + selmon->ww
			&& c->mon->wy + nh >= selmon->wy && c->mon->wy + nh <= selmon->wy + selmon->wh)
			{
				if (!c->isfloating && selmon->lt[selmon->sellt]->arrange
				&& (abs(nw - c->w) > snap || abs(nh - c->h) > snap))
					togglefloating(NULL);
			}
			if (!selmon->lt[selmon->sellt]->arrange || c->isfloating)
				resize(c, c->x, c->y, nw, nh, 1);
			break;
		}
	} while (ev.type != ButtonRelease);
	XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w + c->bw - 1, c->h + c->bw - 1);
	XUngrabPointer(dpy, CurrentTime);
	while (XCheckMaskEvent(dpy, EnterWindowMask, &ev));
	if ((m = recttomon(c->x, c->y, c->w, c->h)) != selmon) {
		sendmon(c, m);
		selmon = m;
		focus(NULL);
	}
}

void
resizerequest(XEvent *e)
{
	XResizeRequestEvent *ev = &e->xresizerequest;
	Client *i;

	if ((i = wintosystrayicon(ev->window))) {
		updatesystrayicongeom(i, ev->width, ev->height);
		resizebarwin(selmon);
		updatesystray();
	}
}

void
restack(Monitor *m)
{
	Client *c;
	XEvent ev;
	XWindowChanges wc;

	drawbar(m);
	drawtab(m);
	if (!m->sel)
		return;
	if (m->sel->isfloating || !m->lt[m->sellt]->arrange)
		XRaiseWindow(dpy, m->sel->win);

	/* raise the aot window */
	for(Monitor *m_search = mons; m_search; m_search = m_search->next){
		for(c = m_search->clients; c; c = c->next){
			if(c->isalwaysontop){
				XRaiseWindow(dpy, c->win);
				break;
			}
		}
	}

	if (m->lt[m->sellt]->arrange) {
		wc.stack_mode = Below;
		wc.sibling = m->barwin;
		for (c = m->stack; c; c = c->snext)
			if (!c->isfloating && ISVISIBLE(c)) {
				XConfigureWindow(dpy, c->win, CWSibling|CWStackMode, &wc);
				wc.sibling = c->win;
			}
	}
	XSync(dpy, False);
	while (XCheckMaskEvent(dpy, EnterWindowMask, &ev));
}

void
run(void)
{
	XEvent ev;
	/* main event loop */
	XSync(dpy, False);
	while (running && !XNextEvent(dpy, &ev))
		if (handler[ev.type])
			handler[ev.type](&ev); /* call handler */
}

void
runautostart(void)
{
	char *pathpfx;
	char *path;
	char *xdgdatahome;
	char *home;
	struct stat sb;

	if ((home = getenv("HOME")) == NULL)
		/* this is almost impossible */
		return;

	/* if $XDG_DATA_HOME is set and not empty, use $XDG_DATA_HOME/dwm,
	 * otherwise use ~/.local/share/dwm as autostart script directory
	 */
	xdgdatahome = getenv("XDG_DATA_HOME");
	if (xdgdatahome != NULL && *xdgdatahome != '\0') {
		/* space for path segments, separators and nul */
		pathpfx = ecalloc(1, strlen(xdgdatahome) + strlen(dwmdir) + 2);

		if (sprintf(pathpfx, "%s/%s", xdgdatahome, dwmdir) <= 0) {
			free(pathpfx);
			return;
		}
	} else {
		/* space for path segments, separators and nul */
		pathpfx = ecalloc(1, strlen(home) + strlen(localshare)
		                     + strlen(dwmdir) + 3);

		if (sprintf(pathpfx, "%s/%s/%s", home, localshare, dwmdir) < 0) {
			free(pathpfx);
			return;
		}
	}

	/* check if the autostart script directory exists */
	if (! (stat(pathpfx, &sb) == 0 && S_ISDIR(sb.st_mode))) {
		/* the XDG conformant path does not exist or is no directory
		 * so we try ~/.dwm instead
		 */
		char *pathpfx_new = realloc(pathpfx, strlen(home) + strlen(dwmdir) + 3);
		if(pathpfx_new == NULL) {
			free(pathpfx);
			return;
		}
		pathpfx = pathpfx_new;

		if (sprintf(pathpfx, "%s/.%s", home, dwmdir) <= 0) {
			free(pathpfx);
			return;
		}
	}

	/* try the blocking script first */
	path = ecalloc(1, strlen(pathpfx) + strlen(autostartblocksh) + 2);
	if (sprintf(path, "%s/%s", pathpfx, autostartblocksh) <= 0) {
		free(path);
		free(pathpfx);
	}

	if (access(path, X_OK) == 0)
		system(path);

	/* now the non-blocking script */
	if (sprintf(path, "%s/%s", pathpfx, autostartsh) <= 0) {
		free(path);
		free(pathpfx);
	}

	if (access(path, X_OK) == 0)
		system(strcat(path, " &"));

	free(pathpfx);
	free(path);
}

void
scan(void)
{
	unsigned int i, num;
	Window d1, d2, *wins = NULL;
	XWindowAttributes wa;

	if (XQueryTree(dpy, root, &d1, &d2, &wins, &num)) {
		for (i = 0; i < num; i++) {
			if (!XGetWindowAttributes(dpy, wins[i], &wa)
			|| wa.override_redirect || XGetTransientForHint(dpy, wins[i], &d1))
				continue;
			if (wa.map_state == IsViewable || getstate(wins[i]) == IconicState)
				manage(wins[i], &wa);
		}
		for (i = 0; i < num; i++) { /* now the transients */
			if (!XGetWindowAttributes(dpy, wins[i], &wa))
				continue;
			if (XGetTransientForHint(dpy, wins[i], &d1)
			&& (wa.map_state == IsViewable || getstate(wins[i]) == IconicState))
				manage(wins[i], &wa);
		}
		if (wins)
			XFree(wins);
	}
}

static void scratchpad_hide ()
{
	if (selmon -> sel)
	{
		selmon -> sel -> tags = SCRATCHPAD_MASK;
		selmon -> sel -> isfloating = 1;
		selmon -> scratchpadnumber +=1;
		// system("notify-send [DEBUG]-添加-scratchpad");
		focus(NULL);
		arrange(selmon);
	}
}

static _Bool scratchpad_last_showed_is_killed (void)
{
	_Bool killed = 1;
	for (Client * c = selmon -> clients; c != NULL; c = c -> next)
	{
		if (c == scratchpad_last_showed)
		{
			killed = 0;
			break;
		}
	}
	return killed;
}

static void scratchpad_remove ()
{
	if (selmon -> sel && scratchpad_last_showed != NULL && selmon -> sel == scratchpad_last_showed) {
		scratchpad_last_showed = NULL;
		selmon -> sel -> isscratchpad = 0;
		selmon -> scratchpadnumber -=1;
		// system("notify-send [DEBUG]-移除-scratchpad");
		updatebars();
	}
}

static void scratchpad_show ()
{
	if(selmon->scratchpadnumber == 0) {// 如果没有任何scratchpad，且当前有选中窗口则把当前窗口加入scratchpad
		// if (selmon -> sel)
		// {
		// 	selmon -> sel -> tags = SCRATCHPAD_MASK;
		// 	selmon -> sel -> isfloating = 1;
		// 	focus(NULL);
		// 	arrange(selmon);
		// }
		scratchpad_hide();
	} else {
		if (scratchpad_last_showed == NULL || scratchpad_last_showed_is_killed ())
			scratchpad_show_first ();
		else
		{
			if (scratchpad_last_showed -> tags != SCRATCHPAD_MASK)
			{
				scratchpad_last_showed -> tags = SCRATCHPAD_MASK;
				focus(NULL);
				arrange(selmon);
			}
			else
			{
				_Bool found_current = 0;
				_Bool found_next = 0;
				for (Client * c = selmon -> clients; c != NULL; c = c -> next)
				{
					if (found_current == 0)
					{
						if (c == scratchpad_last_showed)
						{
							found_current = 1;
							continue;
						}
					}
					else
					{
						if (c -> tags == SCRATCHPAD_MASK)
						{
							found_next = 1;
							scratchpad_show_client (c);
							break;
						}
					}
				}
				if (found_next == 0) scratchpad_show_first ();
			}
		}	
	}
}

static void scratchpad_show_client (Client * c)
{
	scratchpad_last_showed = c;
	c->isscratchpad=1;
	c -> tags = selmon->tagset[selmon->seltags];
	focus(c);
	arrange(selmon);
}

static void scratchpad_show_first (void)
{

	for (Client * c = selmon -> clients; c != NULL; c = c -> next)
	{
		if (c -> tags == SCRATCHPAD_MASK)
		{
			scratchpad_show_client (c);
			c->isscratchpad=1;
			break;
		}
	}
}

void
sendmon(Client *c, Monitor *m)
{
	if (c->mon == m)
		return;
	unfocus(c, 1);
	detach(c);
	detachstack(c);
	c->mon = m;
	c->tags = m->tagset[m->seltags]; /* assign tags of target monitor */
	attach(c);
	attachstack(c);
	focus(NULL);
	arrange(NULL);
}

void
setclientstate(Client *c, long state)
{
	long data[] = { state, None };

	XChangeProperty(dpy, c->win, wmatom[WMState], wmatom[WMState], 32,
		PropModeReplace, (unsigned char *)data, 2);
}

int
sendevent(Window w, Atom proto, int mask, long d0, long d1, long d2, long d3, long d4)
{
	int n;
	Atom *protocols, mt;
	int exists = 0;
	XEvent ev;

	if (proto == wmatom[WMTakeFocus] || proto == wmatom[WMDelete]) {
		mt = wmatom[WMProtocols];
		if (XGetWMProtocols(dpy, w, &protocols, &n)) {
			while (!exists && n--)
				exists = protocols[n] == proto;
			XFree(protocols);
		}
	}
	else {
		exists = True;
		mt = proto;
    }

	if (exists) {
		ev.type = ClientMessage;
		ev.xclient.window = w;
		ev.xclient.message_type = mt;
		ev.xclient.format = 32;
		ev.xclient.data.l[0] = d0;
		ev.xclient.data.l[1] = d1;
		ev.xclient.data.l[2] = d2;
		ev.xclient.data.l[3] = d3;
		ev.xclient.data.l[4] = d4;
		XSendEvent(dpy, w, False, mask, &ev);
	}
	return exists;
}

void
setfocus(Client *c)
{
	if (!c->neverfocus) {
		XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
		XChangeProperty(dpy, root, netatom[NetActiveWindow],
			XA_WINDOW, 32, PropModeReplace,
			(unsigned char *) &(c->win), 1);
	}
	sendevent(c->win, wmatom[WMTakeFocus], NoEventMask, wmatom[WMTakeFocus], CurrentTime, 0, 0, 0);
}

void
setfullscreen(Client *c, int fullscreen)
{
	if (fullscreen && !c->isfullscreen) {
		XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32,
			PropModeReplace, (unsigned char*)&netatom[NetWMFullscreen], 1);
		c->isfullscreen = 1;
		c->oldstate = c->isfloating;
		c->oldbw = c->bw;
		c->bw = 0;
		c->isfloating = 1;
		resizeclient(c, c->mon->mx, c->mon->my, c->mon->mw, c->mon->mh);
		XRaiseWindow(dpy, c->win);
	} else if (!fullscreen && c->isfullscreen){
		XChangeProperty(dpy, c->win, netatom[NetWMState], XA_ATOM, 32,
			PropModeReplace, (unsigned char*)0, 0);
		c->isfullscreen = 0;
		c->isfloating = c->oldstate;
		c->bw = c->oldbw;
		c->x = c->oldx;
		c->y = c->oldy;
		c->w = c->oldw;
		c->h = c->oldh;
		resizeclient(c, c->x, c->y, c->w, c->h);
		arrange(c->mon);
	}
}

void
layoutscroll(const Arg *arg)
{
	if (!arg || !arg->i)
		return;
	int switchto = selmon->ltcur + arg->i;
	int l = LENGTH(layouts);

	if (switchto == l)
		switchto = 0;
	else if(switchto < 0)
		switchto = l - 1;

	selmon->ltcur = switchto;
	Arg arg2 = {.v= &layouts[switchto] };
	setlayout(&arg2);

}

Layout *last_layout;
void
fullscreen(const Arg *arg)
{
	if (selmon->showbar) {
		for(last_layout = (Layout *)layouts; last_layout != selmon->lt[selmon->sellt]; last_layout++);
		setlayout(&((Arg) { .v = &layouts[2] }));
	} else {
		setlayout(&((Arg) { .v = last_layout }));
	}
	togglebar(arg);
}

void
togglefullscr(const Arg *arg)
{
	if(selmon->sel)
		setfullscreen(selmon->sel, !selmon->sel->isfullscreen);
}


void
setgaps(int oh, int ov, int ih, int iv)
{
	if (oh < 0) oh = 0;
	if (ov < 0) ov = 0;
	if (ih < 0) ih = 0;
	if (iv < 0) iv = 0;

	selmon->gappoh = oh;
	selmon->gappov = ov;
	selmon->gappih = ih;
	selmon->gappiv = iv;
	arrange(selmon);
}

void
togglegaps(const Arg *arg)
{
	enablegaps = !enablegaps;
	arrange(selmon);
}

void
defaultgaps(const Arg *arg)
{
	setgaps(gappoh, gappov, gappih, gappiv);
}

void
incrgaps(const Arg *arg)
{
	setgaps(
		selmon->gappoh + arg->i,
		selmon->gappov + arg->i,
		selmon->gappih + arg->i,
		selmon->gappiv + arg->i
	);
}

void
incrigaps(const Arg *arg)
{
	setgaps(
		selmon->gappoh,
		selmon->gappov,
		selmon->gappih + arg->i,
		selmon->gappiv + arg->i
	);
}

void
incrogaps(const Arg *arg)
{
	setgaps(
		selmon->gappoh + arg->i,
		selmon->gappov + arg->i,
		selmon->gappih,
		selmon->gappiv
	);
}

void
incrohgaps(const Arg *arg)
{
	setgaps(
		selmon->gappoh + arg->i,
		selmon->gappov,
		selmon->gappih,
		selmon->gappiv
	);
}

void
incrovgaps(const Arg *arg)
{
	setgaps(
		selmon->gappoh,
		selmon->gappov + arg->i,
		selmon->gappih,
		selmon->gappiv
	);
}

void
incrihgaps(const Arg *arg)
{
	setgaps(
		selmon->gappoh,
		selmon->gappov,
		selmon->gappih + arg->i,
		selmon->gappiv
	);
}

void
incrivgaps(const Arg *arg)
{
	setgaps(
		selmon->gappoh,
		selmon->gappov,
		selmon->gappih,
		selmon->gappiv + arg->i
	);
}

void
setlayout(const Arg *arg)
{
	if(!arg || !arg->v || arg->v != selmon->lt[selmon->sellt]) {
		selmon->pertag->sellts[selmon->pertag->curtag] ^= 1;
		selmon->sellt = selmon->pertag->sellts[selmon->pertag->curtag];
	}
	if(arg && arg->v)
		selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt] = (Layout *)arg->v;
	selmon->lt[selmon->sellt] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt];
	strncpy(selmon->ltsymbol, selmon->lt[selmon->sellt]->symbol, sizeof selmon->ltsymbol);
	if (selmon->sel)
		arrange(selmon);
	else
		drawbar(selmon);
}

void
setcfact(const Arg *arg) {
	float f;
	Client *c;

	c = selmon->sel;

	if (!arg || !c || !selmon->lt[selmon->sellt]->arrange)
		return;
	if (!arg->f)
		f = 1.0;
	else if (arg->f > 4.0) // set fact absolutely
		f = arg->f - 4.0;
	else
		f = arg->f + c->cfact;
	if (f < 0.25)
		f = 0.25;
	else if (f > 4.0)
		f = 4.0;
	c->cfact = f;
	arrange(selmon);
}

/* arg > 1.0 will set mfact absolutely */
void
setmfact(const Arg *arg)
{
	float f;

	if (!arg || !selmon->lt[selmon->sellt]->arrange)
		return;
	f = arg->f < 1.0 ? arg->f + selmon->mfact : arg->f - 1.0;
	if (f < 0.05 || f > 0.95)
		return;
	selmon->mfact = selmon->pertag->mfacts[selmon->pertag->curtag] = f;
	arrange(selmon);
}

void
setup(void)
{
	int i;
	XSetWindowAttributes wa;
	Atom utf8string;

	/* clean up any zombies immediately */
	sigchld(0);

	/* init screen */
	screen = DefaultScreen(dpy);
	sw = DisplayWidth(dpy, screen);
	sh = DisplayHeight(dpy, screen);
	root = RootWindow(dpy, screen);
	xinitvisual();
	drw = drw_create(dpy, screen, root, sw, sh, visual, depth, cmap);
	if (!drw_fontset_create(drw, fonts, LENGTH(fonts)))
		die("no fonts could be loaded.");
	lrpad = drw->fonts->h;
	bh = drw->fonts->h + 2;
	sp = sidepad;
	vp = (topbar == 1) ? vertpad : - vertpad;
	th = bh;
	updategeom();
	/* init atoms */
	utf8string = XInternAtom(dpy, "UTF8_STRING", False);
	wmatom[WMProtocols] = XInternAtom(dpy, "WM_PROTOCOLS", False);
	wmatom[WMDelete] = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
	wmatom[WMState] = XInternAtom(dpy, "WM_STATE", False);
	wmatom[WMTakeFocus] = XInternAtom(dpy, "WM_TAKE_FOCUS", False);
	netatom[NetActiveWindow] = XInternAtom(dpy, "_NET_ACTIVE_WINDOW", False);
	netatom[NetSupported] = XInternAtom(dpy, "_NET_SUPPORTED", False);
	netatom[NetSystemTray] = XInternAtom(dpy, "_NET_SYSTEM_TRAY_S0", False);
	netatom[NetSystemTrayOP] = XInternAtom(dpy, "_NET_SYSTEM_TRAY_OPCODE", False);
	netatom[NetSystemTrayOrientation] = XInternAtom(dpy, "_NET_SYSTEM_TRAY_ORIENTATION", False);
	netatom[NetSystemTrayOrientationHorz] = XInternAtom(dpy, "_NET_SYSTEM_TRAY_ORIENTATION_HORZ", False);
	netatom[NetWMName] = XInternAtom(dpy, "_NET_WM_NAME", False);
	netatom[NetWMIcon] = XInternAtom(dpy, "_NET_WM_ICON", False);
	netatom[NetWMState] = XInternAtom(dpy, "_NET_WM_STATE", False);
	netatom[NetWMCheck] = XInternAtom(dpy, "_NET_SUPPORTING_WM_CHECK", False);
	netatom[NetWMFullscreen] = XInternAtom(dpy, "_NET_WM_STATE_FULLSCREEN", False);
	netatom[NetWMWindowType] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE", False);
	netatom[NetWMWindowTypeDialog] = XInternAtom(dpy, "_NET_WM_WINDOW_TYPE_DIALOG", False);
	netatom[NetClientList] = XInternAtom(dpy, "_NET_CLIENT_LIST", False);
	xatom[Manager] = XInternAtom(dpy, "MANAGER", False);
	xatom[Xembed] = XInternAtom(dpy, "_XEMBED", False);
	xatom[XembedInfo] = XInternAtom(dpy, "_XEMBED_INFO", False);
	motifatom = XInternAtom(dpy, "_MOTIF_WM_HINTS", False);
	/* init cursors */
	cursor[CurNormal] = drw_cur_create(drw, XC_left_ptr);
	cursor[CurResizeHorzArrow] = drw_cur_create(drw, XC_sb_h_double_arrow); /* 水平移动调节尺寸鼠标光标*/
	cursor[CurResizeVertArrow] = drw_cur_create(drw, XC_sb_v_double_arrow); /* 垂直移动调节尺寸鼠标光标*/
	cursor[CurIronCross] = drw_cur_create(drw, XC_iron_cross);
	cursor[CurResize] = drw_cur_create(drw, XC_sizing);
	cursor[CurMove] = drw_cur_create(drw, XC_fleur);
	/* init appearance */
	scheme = ecalloc(LENGTH(colors), sizeof(Clr *));
	for (i = 0; i < LENGTH(colors); i++){
		// scheme[i] = drw_scm_create(drw, colors[i], 3);
		scheme[i] = drw_scm_create(drw, colors[i], alphas[i], 3);		
	}
	/* init system tray */
	updatesystray();
	/* init bars */
	updatebars();
	updatestatus();
	/* supporting window for NetWMCheck */
	wmcheckwin = XCreateSimpleWindow(dpy, root, 0, 0, 1, 1, 0, 0, 0);
	XChangeProperty(dpy, wmcheckwin, netatom[NetWMCheck], XA_WINDOW, 32,
		PropModeReplace, (unsigned char *) &wmcheckwin, 1);
	XChangeProperty(dpy, wmcheckwin, netatom[NetWMName], utf8string, 8,
		PropModeReplace, (unsigned char *) "dwm", 3);
	XChangeProperty(dpy, root, netatom[NetWMCheck], XA_WINDOW, 32,
		PropModeReplace, (unsigned char *) &wmcheckwin, 1);
	/* EWMH support per view */
	XChangeProperty(dpy, root, netatom[NetSupported], XA_ATOM, 32,
		PropModeReplace, (unsigned char *) netatom, NetLast);
	XDeleteProperty(dpy, root, netatom[NetClientList]);
	/* select events */
	wa.cursor = cursor[CurNormal]->cursor;
	wa.event_mask = SubstructureRedirectMask|SubstructureNotifyMask
		|ButtonPressMask|PointerMotionMask|EnterWindowMask
		|LeaveWindowMask|StructureNotifyMask|PropertyChangeMask;
	XChangeWindowAttributes(dpy, root, CWEventMask|CWCursor, &wa);
	XSelectInput(dpy, root, wa.event_mask);
	grabkeys();
	focus(NULL);
}

void
seturgent(Client *c, int urg)
{
	XWMHints *wmh;

	c->isurgent = urg;
	if (!(wmh = XGetWMHints(dpy, c->win)))
		return;
	wmh->flags = urg ? (wmh->flags | XUrgencyHint) : (wmh->flags & ~XUrgencyHint);
	XSetWMHints(dpy, c->win, wmh);
	XFree(wmh);
}

void
show(const Arg *arg)
{
	if (selmon->hidsel)
		selmon->hidsel = 0;
	showwin(selmon->sel);
}

void
showall(const Arg *arg) 
{
	Client *c = NULL;
	selmon->hidsel = 0;
	for (c = selmon->clients; c; c = c->next) {
		if (ISVISIBLE(c))
			showwin(c);
	}
	if (!selmon->sel) {
		for (c = selmon->clients; c && !ISVISIBLE(c); c = c->next);
		if (c)
			focus(c);
	}
	restack(selmon);
}

void
showwin(Client *c)
{
	if (!c || !HIDDEN(c))
		return;

	XMapWindow(dpy, c->win);
	setclientstate(c, NormalState);
	arrange(c->mon);
}

void
showhide(Client *c)
{
	if (!c)
		return;
	if (ISVISIBLE(c)) {
		/* show clients top down */
		XMoveWindow(dpy, c->win, c->x, c->y);
		if ((!c->mon->lt[c->mon->sellt]->arrange || c->isfloating) && !c->isfullscreen)
			resize(c, c->x, c->y, c->w, c->h, 0);
		showhide(c->snext);
	} else {
		/* hide clients bottom up */
		showhide(c->snext);
		XMoveWindow(dpy, c->win, WIDTH(c) * -2, c->y);
	}
}

void
sigchld(int unused)
{
	if (signal(SIGCHLD, sigchld) == SIG_ERR)
		die("can't install SIGCHLD handler:");
	while (0 < waitpid(-1, NULL, WNOHANG));
}

void
spawn(const Arg *arg)
{
	if(arg->v == dmenucmd)
		dmenumon[0] = '0' + selmon->num;
	if(fork() == 0) {
		if(dpy)
			close(ConnectionNumber(dpy));
		if (arg->v == statuscmd) {
			for (int i = 0; i < LENGTH(statuscmds); i++) {
				if (statuscmdn == statuscmds[i].id) {
					statuscmd[2] = statuscmds[i].cmd;
					setenv("BUTTON", lastbutton, 1);
					break;
				}
			}
			if (!statuscmd[2])
				exit(EXIT_SUCCESS);
		}
		setsid();
		execvp(((char **)arg->v)[0], (char **)arg->v);
		die("dwm: execvp '%s' failed:", ((char **)arg->v)[0]);
	}
}

void
tag(const Arg *arg)
{
	if (selmon->sel && arg->ui & TAGMASK) {
		selmon->sel->tags = arg->ui & TAGMASK;
		// focus(NULL);
		arrange(selmon);
        if(viewontag)
            view(arg);
	}
}

void
tagmon(const Arg *arg)
{
	if (!selmon->sel || !mons->next)
		return;
	sendmon(selmon->sel, dirtomon(arg->i));
}

void
tile(Monitor *m)
{
	unsigned int i, n, h, mw, my, ty, r, oe = enablegaps, ie = enablegaps;
	float mfacts = 0, sfacts = 0;
	Client *c;

	for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++) {
		if (n < m->nmaster)
			mfacts += c->cfact;
		else
			sfacts += c->cfact;
	}
	if (n == 0)
		return;
	if (smartgaps == n) {
		oe = 0; // outer gaps disabled
	}

	if (n > m->nmaster)
		// mw = m->nmaster ? m->ww * m->mfact : 0;
		// mw = m->nmaster ? (m->ww + m->gappiv*ie) * m->mfact : 0;
		// mw = m->nmaster ? (m->ww + m->gappiv*ie) * (m->rmaster ? 1.0 - m->mfact : m->mfact): 0;
		mw = m->nmaster ? (m->ww - m->gappov*oe)  * (m->rmaster ? 1.0 - m->mfact : m->mfact) : 0;
	else
		// mw = m->ww;
		// mw = m->ww - 2*m->gappov*oe + m->gappiv*ie;
		mw = m->ww - m->gappov*oe;
	// for (i = my = ty = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++)
	for (i = 0, my = ty = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++) {
		if (i < m->nmaster) {
			// 主堆栈区域
			// h = (m->wh - my) / (MIN(n, m->nmaster) - i);
			// h = (m->wh - my) * (c->cfact / mfacts);
			r = MIN(n, m->nmaster) - i;
			// h = ((m->wh - my - m->gappoh*oe - m->gappih*ie * (r - 1)) / r) * (c->cfact / mfacts);
			h = ((m->wh - my - m->gappih*ie * (r - 1)) / r) * (c->cfact / mfacts) - gappoh*oe ;
			// resize(c, m->wx, m->wy + my, mw - (2*c->bw), h - (2*c->bw), 0);
			// resize(c, m->wx + m->gappov*oe, m->wy + my, mw - (2*c->bw) - m->gappiv*ie, h - (2*c->bw), 0);
			resize(c, m->rmaster ? m->wx + m->ww - mw : m->wx + m->gappov*oe, m->wy + my + m->gappoh*oe, mw - (2*c->bw) - m->gappov*oe, h - (2*c->bw) - m->gappoh*oe, 0);
			if (my + HEIGHT(c) < m->wh)
				my += HEIGHT(c) + m->gappoh*oe;
			mfacts -= c->cfact;
		} else {
			// h = (m->wh - ty) / (n - i);
			// h = (m->wh - ty) * (c->cfact / sfacts);
			r = n - i;
			// h = ((m->wh - ty - m->gappoh*oe - m->gappih*ie * (r - 1)) / r) * (c->cfact / sfacts);
			h = ((m->wh - ty - m->gappih*ie * (r - 1)) / r) * (c->cfact);
			// resize(c, m->wx + mw, m->wy + ty, m->ww - mw - (2*c->bw), h - (2*c->bw), 0);
			// resize(c, m->wx + mw + m->gappov*oe, m->wy + ty, m->ww - mw - (2*c->bw) - 2*m->gappov*oe, h - (2*c->bw), 0);
			resize(c, m->rmaster ? m->wx + m->gappov*oe : m->wx + mw + m->gappiv*ie, m->wy + ty + m->gappoh*oe, m->ww - mw - (2*c->bw) - m->gappov*oe - m->gappiv*ie, h - (2*c->bw) - 2*m->gappoh*oe, 0);
			if (ty + HEIGHT(c) + m->gappih*ie < m->wh)
				ty += HEIGHT(c) + m->gappih*ie;
			sfacts -= c->cfact;
		}
	}
}

void
deck(Monitor *m) {
	unsigned int i, n, h, mw, my, oe = enablegaps, ie = enablegaps;
	Client *c;

	for(n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
	if(n == 0)
		return;
	if (smartgaps == n) {
		oe = 0; // outer gaps disabled
	}
	if(n > m->nmaster) {
		// 多于两个窗口
		// mw = m->nmaster ? (m->ww - m->gappov*oe - m->gappiv*ie) * m->mfact : 0;
		// mw = m->nmaster ? (m->ww - m->gappov*oe) * m->mfact : 0;
		mw = m->nmaster ? (m->ww - m->gappov*oe)  * (m->rmaster ? 1.0 - m->mfact : m->mfact) : 0;
		// snprintf(m->ltsymbol, sizeof m->ltsymbol, "[%d]", n - m->nmaster);
		snprintf(m->ltsymbol, sizeof m->ltsymbol, "[D%d]", n - m->nmaster);
	} else {
		mw = m->ww - m->gappov*oe;
		// mw = m->ww - m->gappiv*ie;
	}
	for(i = my = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++)
		if(i < m->nmaster) {
			// 主堆栈区域
			// h = (m->wh - my - m->gappoh*oe - m->gappih*ie ) / (MIN(n, m->nmaster) - i);
			// h = (m->wh - my - m->gappoh*oe) / (MIN(n, m->nmaster) - i);
			h = (m->wh - my) / (MIN(n, m->nmaster) - i) - m->gappoh*oe;
			// resize(c, m->wx + m->gappov*oe, m->wy + my + m->gappoh*oe, mw - (2*c->bw) - m->gappov*oe, h - (2*c->bw) - m->gappoh*oe, False);
			resize(c, m->rmaster ? m->wx + m->ww - mw : m->wx + m->gappov*oe, m->wy + my + m->gappoh*oe, mw - (2*c->bw) - m->gappov*oe, h - (2*c->bw) - m->gappoh*oe, False);
			my += HEIGHT(c) + m->gappoh*oe;
		} else {
			// resize(c, m->wx + mw + m->gappov*oe, m->wy + m->gappoh*oe, m->ww - mw - (2*c->bw) - m->gappov*oe - m->gappiv*ie, m->wh - (2*c->bw) - m->gappoh*oe - m->gappih*ie, False);
			// resize(c, m->wx + mw + m->gappiv*ie, m->wy + m->gappoh*oe, m->ww - mw - (2*c->bw) - m->gappov*oe - m->gappiv*ie, m->wh - (2*c->bw) - 2*m->gappoh*oe, False);
			resize(c, m->rmaster ? m->wx + m->gappov*oe : m->wx + mw + m->gappiv*ie, m->wy + m->gappoh*oe, m->ww - mw - (2*c->bw) - m->gappov*oe - m->gappiv*ie, m->wh - (2*c->bw) - 2*m->gappoh*oe, False);
		}
}

void
grid(Monitor *m){
	unsigned int i, n, cx, cy, cw, ch, aw, ah, cols, rows, oe = enablegaps, ie = enablegaps;
	Client *c;

	for(n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next))
		n++;

	/* grid dimensions */
	for(rows = 0; rows <= n/2; rows++)
		if(rows*rows >= n)
			break;
	cols = (rows && (rows - 1) * rows >= n) ? rows - 1 : rows;

	/* window geoms (cell height/width) */
	ch = (m->wh - 2*m->gappoh*oe - (rows-1)*m->gappih*ie ) / (rows ? rows : 1);
	cw = (m->ww - 2*m->gappov*oe - (cols-1)*m->gappiv*ie ) / (cols ? cols : 1);
	for(i = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next)) {
		cx = m->wx  + (i / rows) * cw + m->gappov*oe + (i / rows) * m->gappiv*ie;
		cy = m->wy  + (i % rows) * ch + m->gappoh*oe + (i % rows) * m->gappih*ie;;
		/* adjust height/width of last row/column's windows */
		// ah = (((i + 1) % rows == 0) ? m->wh - ch * rows : 0);
		// aw = ((i >= rows * (cols - 1)) ? m->ww - cw * cols : 0);
		// resize(c, cx, cy, cw - 2 * c->bw + aw , ch - 2 * c->bw + ah, False);
		resize(c, cx, cy, cw - 2 * c->bw, ch - 2 * c->bw, False);
		i++;
	}
}

void
overviewgrid(Monitor *m, uint gappo, uint gappi)
{
    unsigned int i, n;
    unsigned int cx, cy, cw, ch;
    unsigned int dx;
    unsigned int cols, rows, overcols;
    Client *c;

    for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
    if (n == 0) return;
    if (n == 1) {
        c = nexttiled(m->clients);
        cw = (m->ww - 2 * gappo) * 0.6;
        ch = (m->wh - 2 * gappo) * 0.6;
        resize(c,
               m->mx + (m->mw - cw) / 2 + gappo,
               m->my + (m->mh - ch) / 2 + gappo,
               cw - 2 * c->bw,
               ch - 2 * c->bw,
               0);
        return;
    }
    if (n == 2) {
        c = nexttiled(m->clients);
        cw = (m->ww - 2 * gappo - gappi) / 2;
        ch = (m->wh - 2 * gappo) * 0.6;
        resize(c,
               m->mx + gappo,
               m->my + (m->mh - ch) / 2 + gappo,
               cw - 2 * c->bw,
               ch - 2 * c->bw,
               0);
        resize(nexttiled(c->next),
               m->mx + cw + gappo + gappi,
               m->my + (m->mh - ch) / 2 + gappo,
               cw - 2 * c->bw,
               ch - 2 * c->bw,
               0);
        return;
    }

    for (cols = 0; cols <= n / 2; cols++)
        if (cols * cols >= n)
            break;
    rows = (cols && (cols - 1) * cols >= n) ? cols - 1 : cols;
	ch = (m->wh - 2 * gappo - (rows - 1) * gappi) / rows;
	cw = (m->ww - 2 * gappo - (cols - 1) * gappi) / cols;

    overcols = n % cols;
    if (overcols)
        dx = (m->ww - overcols * cw - (overcols - 1) * gappi) / 2 - gappo;
	for(i = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++) {
        cx = m->wx + (i % cols) * (cw + gappi);
        cy = m->wy + (i / cols) * (ch + gappi);
        if (overcols && i >= n - overcols) {
            cx += dx;
        }
        resize(c,
               cx + gappo,
               cy + gappo,
               cw - 2 * c->bw,
               ch - 2 * c->bw,
               0);
	}
}

void
overview(Monitor *m)
{
    overviewgrid(m, overviewgappo, overviewgappi);
}

// 显示所有tag 或 跳转到聚焦窗口的tag
void
toggleoverview(const Arg *arg)
{
    uint target = selmon->sel ? selmon->sel->tags : selmon->tagset[selmon->seltags];
    selmon->isoverview ^= 1;
    view(&(Arg){ .ui = target });
}

void
overviewwintileclickswitch(const Arg *arg)
{
	// killclient(arg); // 关闭窗口
	Client *c = (Client*)arg->v;
	
	if (HIDDEN(c)){ // 如果选中窗口是隐藏的
		showwin(c);
	}
	if (c == selmon->sel) {// 如果点中了已聚焦窗口
		// focus(c);
		arrange(c->mon);
		toggleoverview(arg); // 开关overview视图模式
	} else {
		if (HIDDEN(c)){
			showwin(c);
		}
		focus(c);
		restack(selmon);
	}
}

/* overview 模式下 tab键 向下切换*/
void
overviewwinswitch(const Arg *arg)
{
	// 判读是否是overview模式
	// if ( !selmon->isoverview ){// 非overview模式
	// 	// selmon->isoverview ^= 1;
	// 	// toggleoverview(arg);
	// 	// return;
	// 	// printf XK_tab;
	// 	// SHCMD("echo `	`")
	// } else {
	// 	// 向下/向上切换
	// 	focusstack(arg->i, 1);
	// }
	// 向下/向上切换
	focusstack(arg->i, 1);
}


void
togglebar(const Arg *arg)
{
	// selmon->showbar = !selmon->showbar;
	selmon->showbar = selmon->pertag->showbars[selmon->pertag->curtag] = !selmon->showbar;
	updatebarpos(selmon);
	resizebarwin(selmon);
	if (showsystray) {
		XWindowChanges wc;
		if (!selmon->showbar)
			wc.y = -bh;
		else if (selmon->showbar) {
			wc.y = 0;
			if (!selmon->topbar)
				wc.y = selmon->mh - bh;
		}
		XConfigureWindow(dpy, systray->win, CWY, &wc);
	}
	arrange(selmon);
}

void
toggleshowalltags(const Arg *arg)
{
	if (selmon->showalltags == 1)
	{
		selmon->showalltags = 0;
	} else {
		selmon->showalltags = 1;
	}
}

void
tabmode(const Arg *arg)
{
	if(arg && arg->i >= 0)
		selmon->showtab = arg->ui % showtab_nmodes;
	else
		selmon->showtab = (selmon->showtab + 1 ) % showtab_nmodes;
	arrange(selmon);
}

void
toggletabmode(const Arg *arg)
{
	if (selmon->showtab == showtab_always)
	{
		selmon->showtab = showtab_auto;
	} else {
		selmon->showtab = showtab_always;
	}
}

void
togglekeymode(const Arg *arg)
{
	// if (keymode == ModeCommand){
	if (keymode == COMMANDMODE){
		// setinsertmode();	
		setkeymode(&(Arg){ .ui = INSERTMODE });
	} else {
		setkeymode(&(Arg){ .ui = COMMANDMODE });
	}
}

void 
clicktabmodefocusandkillclient(const Arg* arg)
{
	int iwin = arg->i;
	Client* c = NULL;
	for(c = selmon->clients; c && (iwin || !ISVISIBLE(c)) ; c = c->next){
		if(ISVISIBLE(c)) --iwin;
	};
	if(c) {
		focus(c);
		// 关闭点击选中的窗口
		killclient(arg);
		// restack(selmon);
	}
}

void
clicktabmodetogglefloating(const Arg* arg)
{
	int iwin = arg->i;
	Client* c = NULL;
	for(c = selmon->clients; c && (iwin || !ISVISIBLE(c)) ; c = c->next){
		if(ISVISIBLE(c)) --iwin;
	};
	if (HIDDEN(c))
		showwin(c);
	if (c == selmon->sel) {
		arrange(c->mon);
	} else {
		focus(c);
		restack(selmon);
	}
	togglefloating(arg); // 选中窗口悬浮开关
}

void
clicktabmodetogglealwaysontop(const Arg* arg)
{
	int iwin = arg->i;
	Client* c = NULL;
	for(c = selmon->clients; c && (iwin || !ISVISIBLE(c)) ; c = c->next){
		if(ISVISIBLE(c)) --iwin;
	};
	if (HIDDEN(c))
		showwin(c);
	if (c == selmon->sel) {
		arrange(c->mon);
	} else {
		focus(c);
		restack(selmon);
	}
	togglealwaysontop(arg); // 选中窗口悬浮开关
}

void
clicktabmoderesizemouse(const Arg* arg)
{
	int iwin = arg->i;
	Client* c = NULL;
	for(c = selmon->clients; c && (iwin || !ISVISIBLE(c)) ; c = c->next){
		if(ISVISIBLE(c)) --iwin;
	};
	if(c) {
		focus(c);
		resizemouse(arg);
	}
}

void
clicktabmodemousemove(const Arg* arg)
{
	int iwin = arg->i;
	Client* c = NULL;
	for(c = selmon->clients; c && (iwin || !ISVISIBLE(c)) ; c = c->next){
		if(ISVISIBLE(c)) --iwin;
	};
	if(c) {
		focus(c);
		// 如果已经选中则
		if (HIDDEN(c)) {
			showwin(c);
		} else {
			// 进入拖拽移动功能
			// moveorplace(c);	
			Arg a = { .v = c };
			moveorplace(&a);
		}
	}
}

void
clicktogglefloating(const Arg *arg)
{
	// killclient(arg); // 关闭窗口
	Client *c = (Client*)arg->v;

	if (HIDDEN(c))
		showwin(c);
	if (c == selmon->sel) {
		arrange(c->mon);
	} else {
		focus(c);
		restack(selmon);
	}
	togglefloating(arg); // 选中窗口悬浮开关
}

void
togglefloating(const Arg *arg)
{
	if (!selmon->sel)
		return;
	if (selmon->sel->isfullscreen) /* no support for fullscreen windows */
		return;
	selmon->sel->isfloating = !selmon->sel->isfloating || selmon->sel->isfixed;
	if (selmon->sel->isfloating)
		resize(selmon->sel, selmon->sel->x, selmon->sel->y,
			selmon->sel->w, selmon->sel->h, 0);
	else
		selmon->sel->isalwaysontop = 0; /* disabled, turn this off too */
	arrange(selmon);
}

void
togglealwaysontop(const Arg *arg)
{
	if (!selmon->sel)
		return;
	if (selmon->sel->isfullscreen)
		return;

	if(selmon->sel->isalwaysontop){
		selmon->sel->isalwaysontop = 0;
	}else{
		/* disable others 只当前tags的 */
		for(Client *c = selmon->clients; c; c = c->next) { // 查找范围为当前的监视器
			if (c->tags == selmon->sel->tags) { // 相同tag的其他窗口才禁止
				c->isalwaysontop = 0;
			}
		}
			
		/* disable others  只当前监视器*/
		// for(Client *c = selmon->clients; c; c = c->next) //  查找范围为当前的监视器
		// 	c->isalwaysontop = 0;
		/* disable others  含其他监视器*/
		// for(Monitor *m = mons; m; m = m->next) //  查找范围为全部所有的监视器
		// 	for(Client *c = m->clients; c; c = c->next)
		// 		c->isalwaysontop = 0;

		/* turn on, make it float too */
		selmon->sel->isfloating = 1;
		selmon->sel->isalwaysontop = 1;
	}

 	arrange(selmon);
 }

void
clicktogglealwaysontop(const Arg *arg)
{
	Client *c = (Client*)arg->v;
	// 关闭点击选中的窗口
	// 先聚焦 
	focus(c);
	// killclient(arg);
	togglealwaysontop(arg);
}


void
togglermaster(const Arg *arg)
{
	selmon->rmaster = !selmon->rmaster;
	/* now mfact represents the left factor */
	selmon->mfact = 1.0 - selmon->mfact;
	if (selmon->lt[selmon->sellt]->arrange)
		arrange(selmon);
}

void
toggletag(const Arg *arg)
{
	unsigned int newtags;

	if (!selmon->sel)
		return;
	newtags = selmon->sel->tags ^ (arg->ui & TAGMASK);
	if (newtags) {
		selmon->sel->tags = newtags;
		focus(NULL);
		arrange(selmon);
	}
}

void
toggleview(const Arg *arg)
{
	unsigned int newtagset = selmon->tagset[selmon->seltags] ^ (arg->ui & TAGMASK);
	int i;

	if (newtagset) {
		if(newtagset == ~0) {
			selmon->pertag->prevtag = selmon->pertag->curtag;
			selmon->pertag->curtag = 0;
		}
		/* test if the user did not select the same tag */
		if(!(newtagset & 1 << (selmon->pertag->curtag - 1))) {
			selmon->pertag->prevtag = selmon->pertag->curtag;
			for (i=0; !(newtagset & 1 << i); i++) ;
			selmon->pertag->curtag = i + 1;
		}
		selmon->tagset[selmon->seltags] = newtagset;

		/* apply settings for this view */
		selmon->nmaster = selmon->pertag->nmasters[selmon->pertag->curtag];
		selmon->mfact = selmon->pertag->mfacts[selmon->pertag->curtag];
		selmon->sellt = selmon->pertag->sellts[selmon->pertag->curtag];
		selmon->lt[selmon->sellt] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt];
		selmon->lt[selmon->sellt^1] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt^1];
		if (selmon->showbar != selmon->pertag->showbars[selmon->pertag->curtag])
			togglebar(NULL);
		focus(NULL);
		arrange(selmon);
	}
}

void
togglewin(const Arg *arg)
{
	Client *c = (Client*)arg->v;

	if (c == selmon->sel) {
		hidewin(c);
		focus(NULL);
		arrange(c->mon);
	} else {
		if (HIDDEN(c))
			showwin(c);
		focus(c);
		restack(selmon);
	}
}

void
clicktogglewinormousemove(const Arg *arg)
{
	Client *c = (Client*)arg->v;

	if (c == selmon->sel) {
		// 如果已经选中则
		if (HIDDEN(c)) {
			showwin(c);
		} else {
			// 进入拖拽移动功能
			// moveorplace(c);	
			Arg a = { .v = c };
			moveorplace(&a);
		}
	} else {
		if (HIDDEN(c))
			showwin(c);
		focus(c);
		restack(selmon);
	}
}


void
freeicon(Client *c)
{
	if (c->icon) {
		XRenderFreePicture(dpy, c->icon);
		c->icon = None;
	}
}

void
unfocus(Client *c, int setfocus)
{
	if (!c)
		return;
	grabbuttons(c, 0);
	XSetWindowBorder(dpy, c->win, scheme[SchemeNorm][ColBorder].pixel);
	if (setfocus) {
		XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);
		XDeleteProperty(dpy, root, netatom[NetActiveWindow]);
	}
}

void
unmanage(Client *c, int destroyed)
{
	Monitor *m = c->mon;
	XWindowChanges wc;

	detach(c);
	detachstack(c);
	freeicon(c);
	if (!destroyed) {
		wc.border_width = c->oldbw;
		XGrabServer(dpy); /* avoid race conditions */
		XSetErrorHandler(xerrordummy);
		XSelectInput(dpy, c->win, NoEventMask);
		XConfigureWindow(dpy, c->win, CWBorderWidth, &wc); /* restore border */
		XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
		setclientstate(c, WithdrawnState);
		XSync(dpy, False);
		XSetErrorHandler(xerror);
		XUngrabServer(dpy);
	}
	if (scratchpad_last_showed == c)
		scratchpad_last_showed = NULL;
	free(c);
	focus(NULL);
	updateclientlist();
	arrange(m);
}

void
unmapnotify(XEvent *e)
{
	Client *c;
	XUnmapEvent *ev = &e->xunmap;

	if ((c = wintoclient(ev->window))) {
		if (ev->send_event)
			setclientstate(c, WithdrawnState);
		else
			unmanage(c, 0);
	}
	else if ((c = wintosystrayicon(ev->window))) {
		/* KLUDGE! sometimes icons occasionally unmap their windows, but do
		 * _not_ destroy them. We map those windows back */
		XMapRaised(dpy, c->win);
		updatesystray();
	}
}

void
updatebars(void)
{
	unsigned int w;
	Monitor *m;
	XSetWindowAttributes wa = {
		.override_redirect = True,
		// .background_pixmap = ParentRelative,
		.background_pixel = 0,
		.border_pixel = 0,
		.colormap = cmap,
		.event_mask = ButtonPressMask|ExposureMask
	};
	XClassHint ch = {"dwm", "dwm"};
	for (m = mons; m; m = m->next) {
		if (m->barwin)
			continue;
		w = m->ww;
		if (showsystray && m == systraytomon(m))
			w -= getsystraywidth();

		// m->tabwin = XCreateWindow(dpy, root, m->wx, m->ty m->ww, th, 0, depth,
		// m->tabwin = XCreateWindow(dpy, root, m->wx + sp, m->ty + vp, m->ww - 2 * sp, th, 0, depth,
		// m->tabwin = XCreateWindow(dpy, root, m->wx + tabsidepad, m->ty + tabvertpad, m->ww - 2 * tabsidepad, th, 0, depth,
		m->tabwin = XCreateWindow(dpy, root, m->wx + tabsidepad, m->ty, m->ww - 2 * tabsidepad, th, 0, depth,
				InputOutput, visual,
				CWOverrideRedirect|CWBackPixel|CWBorderPixel|CWColormap|CWEventMask, &wa);
		XDefineCursor(dpy, m->tabwin, cursor[CurNormal]->cursor);
		XMapRaised(dpy, m->tabwin);
		XSetClassHint(dpy, m->tabwin, &ch);
		
		// m->barwin = XCreateWindow(dpy, root, m->wx, m->by, w, bh, 0, DefaultDepth(dpy, screen),
		// 		CopyFromParent, DefaultVisual(dpy, screen),
		// 		CWOverrideRedirect|CWBackPixmap|CWEventMask, &wa);
		m->barwin = XCreateWindow(dpy, root, m->wx + sp, m->by + vp, w - 2 * sp, bh, 0, depth,
				InputOutput, visual,
				CWOverrideRedirect|CWBackPixel|CWBorderPixel|CWColormap|CWEventMask, &wa);
		XDefineCursor(dpy, m->barwin, cursor[CurNormal]->cursor);
		if (showsystray && m == systraytomon(m)) {
			XMapRaised(dpy, systray->win);
			XSetClassHint(dpy, systray->win, &ch);
		}
		XMapRaised(dpy, m->barwin);
		XSetClassHint(dpy, m->barwin, &ch);
	}
}

void
updatebarpos(Monitor *m)
{
	Client *c;
	int nvis = 0;

	m->wy = m->my;
	m->wh = m->mh;
	if (m->showbar) {
		// m->wh -= bh;
		m->wh = m->wh - vertpad - bh;
		// m->by = m->topbar ? m->wy : m->wy + m->wh;
		m->by = m->topbar ? m->wy : m->wy + m->wh + vertpad;
		// m->wy = m->topbar ? m->wy + bh : m->wy;
		// m->wy = m->topbar ? m->wy + bh + vp : m->wy;
		if ( m->topbar )
			m->wy += bh + vp;
	} else {
		// m->by = -bh;
		m->by = -bh- vp;
	}

	for(c = m->clients; c; c = c->next){
		if(ISVISIBLE(c)) ++nvis;
	}
	
	if(!m->topbar){// 如果状态栏在底部
		// sp = 0;
		vp = 0; // 与顶部距离改为0
		// m->gappih = 0;
		// m->gappiv = 0;
		// m->gappoh = 0;
		// m->gappov = 0;
	}

	if(m->showtab == showtab_always
		|| ((m->showtab == showtab_auto) && (nvis > 0) && (m->lt[m->sellt]->arrange == monocle))){
		// 开启tab模式，减去窗口与tab状态栏的间隔使之贴合
		// sp = 0;
		// vp = 0; // 与顶部距离改为0
		// m->gappih = 0;
		// m->gappiv = 0;
		// m->gappoh = 0;
		// m->gappov = 0;
		if(m->topbar){ // 如果此时状态栏在顶部
			// vp = 0; // 与顶部距离改为0
			// m->topbar = 0; // 状态栏放到底部
		}
		m->wh -= th;
		m->ty = m->toptab ? m->wy : m->wy + m->wh;
		if ( m->toptab )
			// m->wy += (th + tabvertpad);  // 不贴应用窗口顶部
			m->wy += (th + tabvertpad -vp); // 贴合窗口顶部
		
	} else {
		// m->ty = -th;
		m->ty = -(th + tabvertpad);
		// 恢复原来间隔距离
		// m->topbar  = topbar;
		// vp = vertpad;
		// sp = sidepad;
		// m->gappih = gappih;
		// m->gappiv = gappiv;
		// m->gappoh = gappoh;
		// m->gappov = gappov;
	}
}

void
updateclientlist()
{
	Client *c;
	Monitor *m;

	XDeleteProperty(dpy, root, netatom[NetClientList]);
	for (m = mons; m; m = m->next)
		for (c = m->clients; c; c = c->next)
			XChangeProperty(dpy, root, netatom[NetClientList],
				XA_WINDOW, 32, PropModeAppend,
				(unsigned char *) &(c->win), 1);
}

int
updategeom(void)
{
	int dirty = 0;

#ifdef XINERAMA
	if (XineramaIsActive(dpy)) {
		int i, j, n, nn;
		Client *c;
		Monitor *m;
		XineramaScreenInfo *info = XineramaQueryScreens(dpy, &nn);
		XineramaScreenInfo *unique = NULL;

		for (n = 0, m = mons; m; m = m->next, n++);
		/* only consider unique geometries as separate screens */
		unique = ecalloc(nn, sizeof(XineramaScreenInfo));
		for (i = 0, j = 0; i < nn; i++)
			if (isuniquegeom(unique, j, &info[i]))
				memcpy(&unique[j++], &info[i], sizeof(XineramaScreenInfo));
		XFree(info);
		nn = j;

		/* new monitors if nn > n */
		for (i = n; i < nn; i++) {
			for (m = mons; m && m->next; m = m->next);
			if (m)
				m->next = createmon();
			else
				mons = createmon();
		}
		for (i = 0, m = mons; i < nn && m; m = m->next, i++)
			if (i >= n
			|| unique[i].x_org != m->mx || unique[i].y_org != m->my
			|| unique[i].width != m->mw || unique[i].height != m->mh)
			{
				dirty = 1;
				m->num = i;
				m->mx = m->wx = unique[i].x_org;
				m->my = m->wy = unique[i].y_org;
				m->mw = m->ww = unique[i].width;
				m->mh = m->wh = unique[i].height;
				updatebarpos(m);
			}
		/* removed monitors if n > nn */
		for (i = nn; i < n; i++) {
			for (m = mons; m && m->next; m = m->next);
			while ((c = m->clients)) {
				dirty = 1;
				m->clients = c->next;
				detachstack(c);
				c->mon = mons;
				attach(c);
				attachstack(c);
			}
			if (m == selmon)
				selmon = mons;
			cleanupmon(m);
		}
		free(unique);
	} else
#endif /* XINERAMA */
	{ /* default monitor setup */
		if (!mons)
			mons = createmon();
		if (mons->mw != sw || mons->mh != sh) {
			dirty = 1;
			mons->mw = mons->ww = sw;
			mons->mh = mons->wh = sh;
			updatebarpos(mons);
		}
	}
	if (dirty) {
		selmon = mons;
		selmon = wintomon(root);
	}
	return dirty;
}

void
updatemotifhints(Client *c)
{
	Atom real;
	int format;
	unsigned char *p = NULL;
	unsigned long n, extra;
	unsigned long *motif;
	int width, height;

	if (!decorhints)
		return;

	if (XGetWindowProperty(dpy, c->win, motifatom, 0L, 5L, False, motifatom,
	                       &real, &format, &n, &extra, &p) == Success && p != NULL) {
		motif = (unsigned long*)p;
		if (motif[MWM_HINTS_FLAGS_FIELD] & MWM_HINTS_DECORATIONS) {
			width = WIDTH(c);
			height = HEIGHT(c);

			if (motif[MWM_HINTS_DECORATIONS_FIELD] & MWM_DECOR_ALL ||
			    motif[MWM_HINTS_DECORATIONS_FIELD] & MWM_DECOR_BORDER ||
			    motif[MWM_HINTS_DECORATIONS_FIELD] & MWM_DECOR_TITLE)
				c->bw = c->oldbw = borderpx;
			else
				c->bw = c->oldbw = 0;

			resize(c, c->x, c->y, width - (2*c->bw), height - (2*c->bw), 0);
		}
		XFree(p);
	}
}

void
updatenumlockmask(void)
{
	unsigned int i, j;
	XModifierKeymap *modmap;

	numlockmask = 0;
	modmap = XGetModifierMapping(dpy);
	for (i = 0; i < 8; i++)
		for (j = 0; j < modmap->max_keypermod; j++)
			if (modmap->modifiermap[i * modmap->max_keypermod + j]
				== XKeysymToKeycode(dpy, XK_Num_Lock))
				numlockmask = (1 << i);
	XFreeModifiermap(modmap);
}

void
updatesizehints(Client *c)
{
	long msize;
	XSizeHints size;

	if (!XGetWMNormalHints(dpy, c->win, &size, &msize))
		/* size is uninitialized, ensure that size.flags aren't used */
		size.flags = PSize;
	if (size.flags & PBaseSize) {
		c->basew = size.base_width;
		c->baseh = size.base_height;
	} else if (size.flags & PMinSize) {
		c->basew = size.min_width;
		c->baseh = size.min_height;
	} else
		c->basew = c->baseh = 0;
	if (size.flags & PResizeInc) {
		c->incw = size.width_inc;
		c->inch = size.height_inc;
	} else
		c->incw = c->inch = 0;
	if (size.flags & PMaxSize) {
		c->maxw = size.max_width;
		c->maxh = size.max_height;
	} else
		c->maxw = c->maxh = 0;
	if (size.flags & PMinSize) {
		c->minw = size.min_width;
		c->minh = size.min_height;
	} else if (size.flags & PBaseSize) {
		c->minw = size.base_width;
		c->minh = size.base_height;
	} else
		c->minw = c->minh = 0;
	if (size.flags & PAspect) {
		c->mina = (float)size.min_aspect.y / size.min_aspect.x;
		c->maxa = (float)size.max_aspect.x / size.max_aspect.y;
	} else
		c->maxa = c->mina = 0.0;
	c->isfixed = (c->maxw && c->maxh && c->maxw == c->minw && c->maxh == c->minh);
	c->hintsvalid = 1;
}

void
updatestatus(void)
{
	if (!gettextprop(root, XA_WM_NAME, stext, sizeof(stext))) {
		strcpy(stext, "dwm-"VERSION);
		statusw = TEXTW(stext) - lrpad + 2;
	} else {
		char *text, *s, ch;
		statusw = 0;
		for (text = s = stext; *s; s++) {
			if ((unsigned char)(*s) < ' ') {
				ch = *s;
				*s = '\0';
				statusw += TEXTW(text) - lrpad;
				*s = ch;
				text = s + 1;
			}
		}
		statusw += TEXTW(text) - lrpad + 2;
	}
	drawbar(selmon);
	updatesystray();
}


void
updatesystrayicongeom(Client *i, int w, int h)
{
	if (i) {
		i->h = bh;
		if (w == h)
			i->w = bh;
		else if (h == bh)
			i->w = w;
		else
			i->w = (int) ((float)bh * ((float)w / (float)h));
		applysizehints(i, &(i->x), &(i->y), &(i->w), &(i->h), False);
		/* force icons into the systray dimensions if they don't want to */
		if (i->h > bh) {
			if (i->w == i->h)
				i->w = bh;
			else
				i->w = (int) ((float)bh * ((float)i->w / (float)i->h));
			i->h = bh;
		}
	}
}

void
updatesystrayiconstate(Client *i, XPropertyEvent *ev)
{
	long flags;
	int code = 0;

	if (!showsystray || !i || ev->atom != xatom[XembedInfo] ||
			!(flags = getatomprop(i, xatom[XembedInfo])))
		return;

	if (flags & XEMBED_MAPPED && !i->tags) {
		i->tags = 1;
		code = XEMBED_WINDOW_ACTIVATE;
		XMapRaised(dpy, i->win);
		setclientstate(i, NormalState);
	}
	else if (!(flags & XEMBED_MAPPED) && i->tags) {
		i->tags = 0;
		code = XEMBED_WINDOW_DEACTIVATE;
		XUnmapWindow(dpy, i->win);
		setclientstate(i, WithdrawnState);
	}
	else
		return;
	sendevent(i->win, xatom[Xembed], StructureNotifyMask, CurrentTime, code, 0,
			systray->win, XEMBED_EMBEDDED_VERSION);
}

void
updatesystray(void)
{
	XSetWindowAttributes wa;
	XWindowChanges wc;
	Client *i;
	Monitor *m = systraytomon(NULL);
	unsigned int x = m->mx + m->mw;
	unsigned int sw = TEXTW(stext) - lrpad + systrayspacing;
	unsigned int w = 1;

	if (!showsystray)
		return;
	if (systrayonleft)
		x -= sw + lrpad / 2;
	if (!systray) {
		/* init systray */
		if (!(systray = (Systray *)calloc(1, sizeof(Systray))))
			die("fatal: could not malloc() %u bytes\n", sizeof(Systray));
		systray->win = XCreateSimpleWindow(dpy, root, x, m->by, w, bh, 0, 0, scheme[SchemeSel][ColBg].pixel);
		wa.event_mask        = ButtonPressMask | ExposureMask;
		wa.override_redirect = True;
		wa.background_pixel  = scheme[SchemeNorm][ColBg].pixel;
		XSelectInput(dpy, systray->win, SubstructureNotifyMask);
		XChangeProperty(dpy, systray->win, netatom[NetSystemTrayOrientation], XA_CARDINAL, 32,
				PropModeReplace, (unsigned char *)&netatom[NetSystemTrayOrientationHorz], 1);
		XChangeWindowAttributes(dpy, systray->win, CWEventMask|CWOverrideRedirect|CWBackPixel, &wa);
		XMapRaised(dpy, systray->win);
		XSetSelectionOwner(dpy, netatom[NetSystemTray], systray->win, CurrentTime);
		if (XGetSelectionOwner(dpy, netatom[NetSystemTray]) == systray->win) {
			sendevent(root, xatom[Manager], StructureNotifyMask, CurrentTime, netatom[NetSystemTray], systray->win, 0, 0);
			XSync(dpy, False);
		}
		else {
			fprintf(stderr, "dwm: unable to obtain system tray.\n");
			free(systray);
			systray = NULL;
			return;
		}
	}
	for (w = 0, i = systray->icons; i; i = i->next) {
		/* make sure the background color stays the same */
		wa.background_pixel  = scheme[SchemeNorm][ColBg].pixel;
		XChangeWindowAttributes(dpy, i->win, CWBackPixel, &wa);
		XMapRaised(dpy, i->win);
		w += systrayspacing;
		i->x = w;
		XMoveResizeWindow(dpy, i->win, i->x, 0, i->w, i->h);
		w += i->w;
		if (i->mon != m)
			i->mon = m;
	}
	w = w ? w + systrayspacing : 1;
	x -= w;
	XMoveResizeWindow(dpy, systray->win, x, m->by, w, bh);
	// wc.x = x; wc.y = m->by; wc.width = w; wc.height = bh;
	wc.x = x - sp; wc.y = m->by + vp; wc.width = w; wc.height = bh;
	wc.stack_mode = Above; wc.sibling = m->barwin;
	XConfigureWindow(dpy, systray->win, CWX|CWY|CWWidth|CWHeight|CWSibling|CWStackMode, &wc);
	XMapWindow(dpy, systray->win);
	XMapSubwindows(dpy, systray->win);
	/* redraw background */
	XSetForeground(dpy, drw->gc, scheme[SchemeNorm][ColBg].pixel);
	// XFillRectangle(dpy, systray->win, drw->gc, 0, 0, w, bh);
	XFillRectangle(dpy, systray->win, XCreateGC(dpy, root, 0 , NULL), 0, 0, w, bh);
	XSync(dpy, False);
}

void
updatetitle(Client *c)
{
	if (!gettextprop(c->win, netatom[NetWMName], c->name, sizeof c->name))
		gettextprop(c->win, XA_WM_NAME, c->name, sizeof c->name);
	if (c->name[0] == '\0') /* hack to mark broken clients */
		strcpy(c->name, broken);
}

void
updateicon(Client *c)
{
	freeicon(c);
	c->icon = geticonprop(c->win, &c->icw, &c->ich);
}

void
updatewindowtype(Client *c)
{
	Atom state = getatomprop(c, netatom[NetWMState]);
	Atom wtype = getatomprop(c, netatom[NetWMWindowType]);

	if (state == netatom[NetWMFullscreen])
		setfullscreen(c, 1);
	if (wtype == netatom[NetWMWindowTypeDialog]) {
		c->iscentered = 1;
		c->isfloating = 1;
	}
}

void
updatewmhints(Client *c)
{
	XWMHints *wmh;

	if ((wmh = XGetWMHints(dpy, c->win))) {
		if (c == selmon->sel && wmh->flags & XUrgencyHint) {
			wmh->flags &= ~XUrgencyHint;
			XSetWMHints(dpy, c->win, wmh);
		} else {
			c->isurgent = (wmh->flags & XUrgencyHint) ? 1 : 0;
			if (c->isurgent)
				XSetWindowBorder(dpy, c->win, scheme[SchemeUrg][ColBorder].pixel);
		}
		if (wmh->flags & InputHint)
			c->neverfocus = !wmh->input;
		else
			c->neverfocus = 0;
		XFree(wmh);
	}
}

void
view(const Arg *arg)
{
	int i;
	unsigned int tmptag;

	if((arg->ui & TAGMASK) == selmon->tagset[selmon->seltags]) {
		arrange(selmon);
		return;
	}
	selmon->seltags ^= 1; /* toggle sel tagset */
	if(arg->ui & TAGMASK) {
		selmon->pertag->prevtag = selmon->pertag->curtag;
		selmon->tagset[selmon->seltags] = arg->ui & TAGMASK;
		if(arg->ui == ~0)
			selmon->pertag->curtag = 0;
		else {
			for (i=0; !(arg->ui & 1 << i); i++) ;
			selmon->pertag->curtag = i + 1;
		}
	} else {
		tmptag = selmon->pertag->prevtag;
		selmon->pertag->prevtag = selmon->pertag->curtag;
		selmon->pertag->curtag = tmptag;
	}
	selmon->nmaster = selmon->pertag->nmasters[selmon->pertag->curtag];
	selmon->mfact = selmon->pertag->mfacts[selmon->pertag->curtag];
	selmon->sellt = selmon->pertag->sellts[selmon->pertag->curtag];
	selmon->lt[selmon->sellt] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt];
	selmon->lt[selmon->sellt^1] = selmon->pertag->ltidxs[selmon->pertag->curtag][selmon->sellt^1];
	if (selmon->showbar != selmon->pertag->showbars[selmon->pertag->curtag])
		togglebar(NULL);
	focus(NULL);
	arrange(selmon);
}

Client *
wintoclient(Window w)
{
	Client *c;
	Monitor *m;

	for (m = mons; m; m = m->next)
		for (c = m->clients; c; c = c->next)
			if (c->win == w)
				return c;
	return NULL;
}

Client *
wintosystrayicon(Window w) {
	Client *i = NULL;

	if (!showsystray || !w)
		return i;
	for (i = systray->icons; i && i->win != w; i = i->next) ;
	return i;
}

Monitor *
wintomon(Window w)
{
	int x, y;
	Client *c;
	Monitor *m;

	if (w == root && getrootptr(&x, &y))
		return recttomon(x, y, 1, 1);
	for (m = mons; m; m = m->next)
		if(w == m->barwin || w == m->tabwin)
			return m;
	if ((c = wintoclient(w)))
		return c->mon;
	return selmon;
}

/* There's no way to check accesses to destroyed windows, thus those cases are
 * ignored (especially on UnmapNotify's). Other types of errors call Xlibs
 * default error handler, which may call exit. */
int
xerror(Display *dpy, XErrorEvent *ee)
{
	if (ee->error_code == BadWindow
	|| (ee->request_code == X_SetInputFocus && ee->error_code == BadMatch)
	|| (ee->request_code == X_PolyText8 && ee->error_code == BadDrawable)
	|| (ee->request_code == X_PolyFillRectangle && ee->error_code == BadDrawable)
	|| (ee->request_code == X_PolySegment && ee->error_code == BadDrawable)
	|| (ee->request_code == X_ConfigureWindow && ee->error_code == BadMatch)
	|| (ee->request_code == X_GrabButton && ee->error_code == BadAccess)
	|| (ee->request_code == X_GrabKey && ee->error_code == BadAccess)
	|| (ee->request_code == X_CopyArea && ee->error_code == BadDrawable))
		return 0;
	fprintf(stderr, "dwm: fatal error: request code=%d, error code=%d\n",
		ee->request_code, ee->error_code);
	return xerrorxlib(dpy, ee); /* may call exit */
}

int
xerrordummy(Display *dpy, XErrorEvent *ee)
{
	return 0;
}

/* Startup Error handler to check if another window manager
 * is already running. */
int
xerrorstart(Display *dpy, XErrorEvent *ee)
{
	die("dwm: another window manager is already running");
	return -1;
}

Monitor *
systraytomon(Monitor *m) {
	Monitor *t;
	int i, n;
	if(!systraypinning) {
		if(!m)
			return selmon;
		return m == selmon ? m : NULL;
	}
	for(n = 1, t = mons; t && t->next; n++, t = t->next) ;
	for(i = 1, t = mons; t && t->next && i < systraypinning; i++, t = t->next) ;
	if(systraypinningfailfirst && n < systraypinning)
		return mons;
	return t;
}

void
xinitvisual()
{
	XVisualInfo *infos;
	XRenderPictFormat *fmt;
	int nitems;
	int i;

	XVisualInfo tpl = {
		.screen = screen,
		.depth = 32,
		.class = TrueColor
	};
	long masks = VisualScreenMask | VisualDepthMask | VisualClassMask;

	infos = XGetVisualInfo(dpy, masks, &tpl, &nitems);
	visual = NULL;
	for(i = 0; i < nitems; i ++) {
		fmt = XRenderFindVisualFormat(dpy, infos[i].visual);
		if (fmt->type == PictTypeDirect && fmt->direct.alphaMask) {
			visual = infos[i].visual;
			depth = infos[i].depth;
			cmap = XCreateColormap(dpy, root, visual, AllocNone);
			useargb = 1;
			break;
		}
	}

	XFree(infos);

	if (! visual) {
		visual = DefaultVisual(dpy, screen);
		depth = DefaultDepth(dpy, screen);
		cmap = DefaultColormap(dpy, screen);
	}
}

void
zoom(const Arg *arg)
{
	Client *c = selmon->sel;

	if (!selmon->lt[selmon->sellt]->arrange || !c || c->isfloating)
		return;
	if (c == nexttiled(selmon->clients) && !(c = nexttiled(c->next)))
		return;
	pop(c);
}

int
main(int argc, char *argv[])
{
	if (argc == 2 && !strcmp("-v", argv[1]))
		die("dwm-"VERSION);
	else if (argc != 1)
		die("usage: dwm [-v]");
	if (!setlocale(LC_CTYPE, "") || !XSupportsLocale())
		fputs("warning: no locale support\n", stderr);
	if (!(dpy = XOpenDisplay(NULL)))
		die("dwm: cannot open display");
	checkotherwm();
	setup();
#ifdef __OpenBSD__
	if (pledge("stdio rpath proc exec", NULL) == -1)
		die("pledge");
#endif /* __OpenBSD__ */
	scan();
	runautostart();
	run();
	cleanup();
	XCloseDisplay(dpy);
	return EXIT_SUCCESS;
}
